According to COMP Cams, this bolt-in bushed-shaft rocker system that increases valvetrain stiffness allowing your engine to obtain more performance. injection for improved drivability and efficiency. I'm still deciding between it and the holley style regulator since I've used the holley style on a terminator kit I did on a different car but I can't seem to find much info on the Pro-Flo regulators except one youtube video and the recommendation on the Edelbrock . Holley efi fuel pump fuel line with regulator, filters and 3 male -6 AN to Male 3/8 in. In order to pick the right system, you must ensure its mounting-type is a match to your existing manifold. Welcome to ClassicBroncos! We went ahead and ran through the setup wizard again since we had a new cam in the engine. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. Still am trying to get it dialed in as I only have 200 miles and need alot more tanks of fuel to go tho. Another Holley fan here..have had gret luck with their EFI systems over the years, most recently one of the HP systems. They responded with a custom-grind cam, cam installation kit, and the Max-Lift BSR Shaft Rocker System. I would strongly recommend this system to anyone looking to go from a carburetor to fuel infection., My 1956 Chevrolet Nomad runs like a modern day EFI vehicle. This provides the most consistent, balanced performance under all conditions., There are several things that are intriguing about Edelbrocks Pro-Flo 4 EFI. All that was left was bolting on a set of headers, screw in the supplied O2 sensor, and connect it to the Edelbrock harness. Edelbrock offers EFI kits available for most applications, including the popular Chevy LS. Edelbrock allows remote installation of the ecm. NOT CONVINCED? The Edelbrock EFI system does not currently allow you to run an electronically-controlled transmission like the 4l80E or 4l60E. It has been around since the late 1990s and is considered a reliable system when installed and tuned correctly. When we said the engine was dirty, we weren't joking. Has anyone else done this already? Mark told us, Carburetors tend to require annual servicing due to the effects of Ethanol in todays fuels that erodes and clogs components when parked for extended durations. Sniper goes from $1000-1500. About a decade out dated similar to the XT. We will safeguard your e-mail and only send content you request. You must log in or register to reply here. This type works by placing the fuel injectors in the throttle body, creating a situation where a controlled mixture of fuel and air is pulled through the manifold. By continuing to use our site, you agree to their use. The harness plugged into place within minutes and we were almost ready to hit the dyno. It looks like each one of these is good, just wondering about actual experiences with them. it to puddle and condense in the plenum of the intake manifold, a recipe for hard cold We resisted the urge to clean the engine off and just wiped down the cylinder heads to ensure we had a good seal between them and intake manifold. So I would guess that the answer to both is yes. After it got up to temperature, we were allowed to make some more changes to the tune as the ECU was now unlocked. This system was developed by Bendix back in 1957. thing of Tommy turned the engine off and we sat there in silence, contemplating what happened. You will need to order the Ignition/IAC Harness harness, but we well into that later. To do a conversion a Dual Sync is recommended. I didn't use the hyperspark system. throttle body style injection for 9 years before transitioning to sequential port fuel Its simple, competitively priced, and compatible with a long list of applications. That price likely wont cover everything, though. Different kits are available to shorten the shopping process as well. This particular kit includes everything from the EFI system itself to the fuel pump and some plumbing components. The engine was no longer a mild-sounding, smooth-running machine. I watched the video from Holly on the Hyperspark system, and am impressed. JavaScript is disabled. Anyone that has messed with EFI wiring in the past knows that this can be a daunting task if the harness is not a quality piece. Mark noted, For power-adders, we have a new release for the E-Tuner 4 App. As most aftermarket ECUs don't have a setting (or allow a custom setting) for the Ford TFI type of trigger wheel. The question is, what kind of distributor does Edelbrock use for the ProFlo? I was a little concerned because I have only installed one fuel injection system prior to this and it didnt go as smooth as advertised. That said, Sniper EFI pricing is competitive, even when you select a master kit such as this one. npt adapters and 2 90 degree vapor guard fittings. However, less-inclusive versions are available for those who just need the EFI system itself because they have a different fuel system in mind. After doing the math I decided to cut my losses on the FiTech . Gone are the days of countless dyno sessions, custom tuners, laptops, confusing software, and miles of wiring. The tablet and Pro-Flo 4 app performed flawlessly. check out the. Great responses! Holley sniper issue on newly rebuilt motor. improve the performance, drivability and quality of your vehicle! Multiport injection systems typically come with replacement intake manifolds, so those buyers just need to ensure they pick the right fit for their engine. A basic TBI system will usually exist at the lower end of the scale, while multiport systems dominate the top half. It's just the Edelbrock Pro Flow 4 that comes with it's own manifold (with fuel rails, I believe) which seems to get universally good reviews) that is not directly compatible with the Magnum heads. Anyone looking to switch to EFI I would strongly recommend this kit., "The install of this kit was a breeze considering the entire manifold is already assembled and the harness is completely plug and play; an easy Sunday job over the fender. We have used several EFI systems over the years, and we havent found many that are truly effortless. The Pro Flo 4 performed flawlessly no matter what we through its way. I know it's in, I was just curious where he is with it. Here is my first blush: The 24x and 58x wire harness are different. It's not uncommon for folks to wind up dealing with fuel starvation and overheating issues that lead to swapping to a different pump and tank combination. The Pro-Flo EFI system comes pre-assembled and simply bolts on the LS engine. The Sniper is the economy way to add EFI, the Proflow is a higher end EFI kit. To take advantage of all the site features, please take a moment to register. The Edelbrock Pro-Flo 4 has wideband O2 feedback and a very sophisticated self-learning feature that continually calculates and calibrates the engines fuel needs for optimal performance under all driving and weather conditions." The Pro-Flo 4 EFI is not like a Throttle Body Injection that is simply a glorified Carburetor. JavaScript is disabled. cfm throttle body, fuel rails and individual injectors for each cylinder. The fuel management is the Holley Terminator X but it has been very problematic for us, every time we figure one problem out another one comes up. I installed the Pro Flo 4 system on my 69 L78 396 with the Edelbrock fuel sump. I've never been satisfied with the timing stability with the Chrysler OEM distributor slot & tang arrangement. It should be in the 500ish flywheel range. 73-87 gm trucks is my thing . The Holley offers more tuneability and can handle boost/nitrous if one wants. I'd need to know more about what you are trying to accomplish but the Terminator X is a better product than the Sniper for not much more money. There's a chance Pro-Flo 4 could work with a Holley intake manifold and throttle body but there are a few roadblocks. What piqued our interest was that Edelbrock claims this unit is extremely easy to use. American Motors Corporation (AMC) designed the first commercial EFI system, called the Electrojector. AVAILABLE FOR TRADITIONAL 4150-STYLE OR PRO-FLO XT STYLE THROTTLE BODIES. Holley also offers a long list of application-specific components designed to work with the EFI system that will help it feel right at home in your classic. Mark Honsowetz. Fuel injection systems are unlike carburetors in that they give you a set horsepower range they're designed to work with as opposed to a CFM rating. We love carbs, but theres always room for fuel injection. Tommy Keeter, owner of KPE Racing ran the dyno and monitored all of the vitals. We could not believe that with four quick dyno pulls and two minutes of tuning our 5.3 LS engine picked up 110 horsepower. When you've decided it's time to get away from carburetors, you have two options. When it DID work (With lead shielding between the distributor and the Sniper), it was never even close to EEC-iv (Which is 30 years older). ? This isn't a feature of a sniper or a terminator though. Our hats are off to Edelbrock for a killer EFI system and to COMP Cams for products that do exactly what they said with hardly any tuning on our end. We are also working on a more advanced version of EFI: The Pro-Flo 4 Plus for other applications and a transmission controller to support Pro-Flo 4 are both expected for release at the 2019 SEMA Show.. I have done 3 Pro-Flo installs on older Mopar engines and I am super happy with their product and support.. the end of the runner on the intake manifold right before the air flow stream enters the You are using an out of date browser. This design is a simple yet excellent improvement over the factory design. He has problemsI do not. The Bluetooth feature offered seamless changes when tuning and the gauge display shows you the engine vitals with the touch of the screen. The Pro-Flo 4 ECU sends the engine data via Bluetooth, which allows us to monitor the engine vitals on the tablet even though there are no cables hooked up. Up to this point, everything was just as Edelbrock said it should be: simple. system, but its not ideal for high performance engines. I often travel to NHRA Cackle Fest events around California and use the Nomad as a push Vehicle for my vintage dragster.The car is great to travel in and runs great in all conditions. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! For the best experience on our site, be sure to turn on Javascript in your browser. modified Mass-flo EFI/reprogrammed A9L/CnC ported Victor. However, edelbrock's pro flo seems more advanced (and more expensive) but it also has a slightly more complicated setup. I took the tablet and pushed a few buttons. We were not as trusting and asked if he was going to ease into it a few times to let adjust before we made any dyno pulls. Ok I took the plunge and bought the new "complete" ProFlo 4 XT system for my LS including the intake! One better than the other? A dual sync should be fine for most engines. So easy to install and all the parts you need come with the kit. Pro-Flo XT uses GM LS IAC, MAP, and TPS. Multiport injection is the other option. Save Share. I'm considering a Terminator X for it. Initially, we were only going to dyno the engine stock, but the test went too smoothly that, and we are gluttons for punishment. Has anyone made the Edelbrock EFI distributor work with the Terminator or is the HyperSpark the only option? For a better experience, please enable JavaScript in your browser before proceeding. I removed the carburetor manifold and the injection manifold bolted right on with no modifications. If . When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Doesn't change the power, just the drivability. In my case with a Megasquirt and some fab work it was less expensive than a dual sync. Tommy replied, Nope! I was able to install it in one afternoon and the wiring was truly plug and play. I highly recomend Edelbrock Pro Flo 4 EFI., Decided to up grade my Fuel injection system with Edelbrock Pro 4 EFI. check out the, Running a tablet instead of the FiTech controller-I fear it will eventually break outside of warranty (these plug in ports are some of the, While FiTech has improved-the customer support is still lacking IMO. MarkHonsowetz, Multi-Port Injection Vs. Throttle Body Injection The Driveand its partners may earn a commission if you purchase a product through one of our links. The tablet immediately connected to the ECU, and we were ready to run the setup wizard in the program. All Pro-Flo 4 EFI systems are warranted directly through Edelbrock for peace of With no CAM signal, it wouldn't know which #1 TDC it was at, but it also shouldn't matter since the distributor was handling the spark distribution. The E-Tuner 4 App is available to download for Android and Apple iOS powered devices. The engine was still making power when it hit the rev-limiter. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! Tommy Keeter, Owner of KPE, has years of experience with both mechanical injection, carburetors, and electronic fuel injection. more to add from me now i have time after work . No learning tuning settings and constantly making changes. Nate S Member Join Date: Jul 2018 Posts: 1133 #4 09-26-2019, 08:07 AM Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a Edelbrock also has Bluetooth connectivity for the tuning tablet, Holley still uses a cable. Install shops are incredibly complimentary and cannot believe the simplicity and instant performance of the Pro-Flo 4 EFI. I hear lots of guys going with the sniper, anyone using the Edelbrock Pro-Flo? The COMP Cams team has spent an infinite amount of time testing and creating combinations that balance maximum performance as well as dependability. So don't be suckered into the "four wires" thing. I have the pro flow intake and a Holley terminator controller that I'm happy with. The system came with a cast aluminum intake manifold, throttle body, fuel injectors, fuel rails, sensors, fittings, hardware, ECU, wiring harness, tablet, and detailed instructions. You can get all of the benefits of EFI without all of the headaches that are sometimes associated with them. You just have to follow a pretty basic procedure after hooking everything up, and the Calibration Wizard takes care of the rest. Some kits might even come with ignition and fuel system components. Jump to Latest Follow 1 - 20 of 23 Posts. Upping The Power With COMP Cams the men on hear are great with helping and telling you what to look for. What are you running? JavaScript is disabled. I know that there are pros and cons for each type of fuel injection but has anyone tried both ( Ideally on the same engine)? Thoughts? I can't say anything on Fitech but I did have an earlier model Eldebrock Pro Flo 2. similar to a carburetor. Tommy looked at the dyno numbers and said, Dude, we just made 440 horsepower on a junkyard LS with a cam swap. He was right! the display and failed ecm . 70 Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C. Within ten minutes, we were done with the setup process. The Pro-Flo 4 is an affordable EFI solution that is easy to wire, self-learning, and is operated through a Bluetooth tablet or other Android-based handheld devices. However, I like Holley EFI. Now it was time to start the engine and tune it. I doubt it. The PF4 is a great kit. That doesn't mean we view our minds as the only source of information. Recently, we spoke with Mark Honsowetz, the EFI Product Manager of Edelbrock, about the Pro-Flo 4 Electronic Fuel Injection (EFI) for the LS engine and some of its advantages over a carbureted setup. With Pro-Flo 4 EFIs computer controlled multi-port injection, hard starts are a Copyright 2022 Holley Performance Products, Inc. All right reserved. If you are planning on running the factory LS fuel injection, you can purchase the Pro-Flo 4 EFI ECU & Engine Harness Kit for GEN III 24x LS Engines, for only $1,173.95. Sep 25, 2019 #1 Holley Sniper or Edelbrock Pro Flo 4? Lots of folks do and it's supposed to be mostly plug and go. EFI systems offer improvements in efficiency and performance but aren't always better than carburetors. Our reviews are driven by a combination of hands-on testing, expert input, wisdom of the crowd assessments from actual buyers, and our own expertise. The fuel rails and individual injectors provide such smooth drivability and effortless, instantaneous cold startup. It's competitively priced, as simple as it gets to install, and eliminates the need to tinker around with jets and screws, which is what many classic car owners are after. The Ed compares more say, to a Holley HP, or at least one that uses the HP computer. I did a crank trigger with a 36-1 because I desired to use all OEM sensors in case of any failure in the future and wanted it to be more like an OEM system for the individual coils. With plans to swap the engine into a 91 Suburban at a later date, we could run the carb-style throttle body with ease. cylinders. mixture to separate as it flows to the cylinders, resulting in an uneven mixture between The Pro-Flo EFI 4 was perfect right out of the box I didnt even look at the instructions. For a better experience, please enable JavaScript in your browser before proceeding. And of course, the fact that it didn't work without a sheet of lead. Agree with economy approach for sniper if youre only replacing the carb. Pro-Flo 4 Electronic Fuel Injection also gives you the ultimate control of your engine when using the Advanced Tuning features. Unless you have the correct software, a computer, and some tuning knowledge, you would need to haul your car to a tuner for some dyno time and a custom tune. 1,000 I like it alot. Banging gears, turning wrenches, and praying while spraying are just a few of his favorite things. With the intake manifold off, it was apparent that the 5.3 had a pretty rough life and was remarkably dirty. Posted by Brian Havins on Tuesday, July 30, 2019. I assume you are talking about for a GEN3 Hemi install? It's just not legit unless it has. The issue is that Holley doesn't have a complete big block Chevy kits. I know it pretty much a sniper with comp tuning abilities. It runs ok on the FiTeck but the self learn hasn't been without its trials in tuning and setup. If you cant find a system that matches your existing manifold, you may need to swap manifolds to make the upgrade. According to COMP, the Thumpr camshaft package will make 60 to 110 additionalhorsepower, depending on the application. Reply Quote. Shut the door and lets make some pulls! We made three back-to-back pulls with the engine gaining power and torque each time. My friend has FiTech. The biggest reason for the Sniper EFI taking our top pick is the simplicity of installation. Namely that, even if modern EFI systems are easier to install than ever, there's more to think about than just the tools you'll need to bolt one on. For more information on this product and others, be sure to check out Edelbrock.com. You are comparing apples to oranges. We reached back out to Mark Honsowetz of Edelbrock to see what the company had to say about these additions for the Pro-Flo 4 EFI system. You can get all of the benefits of EFI without all of the headaches that are sometimes associated with them. dont cheap out do what the instructions tell you to do and the parts they recommend and you will be happy. For intakes that do not have the . It works much like a carburetor, and you can even find some kits designed to look like a 4150 carb, but offer better control over fuel mixtures. A forum community dedicated to Ford performance owners and enthusiasts. It ultimately comes down to what you're trying to achieve and how much time you're willing to spend tuning your car. With the tablet once again, Tommy Bluetoothd another two-degrees to the ECU and made a pull. Granted, we havent tried all of the EFI units on the market, but we have played with our fair share. The next step in the process was to set up the ECU. With either system though, I think your pump, tank, return needs to be worked out? Looking into the Pro-Flo 4+ as an alternative. Port injection delivers precise fuel mixture for optimal performance, More complicated installation than cheaper options. that is why i bought this system. This features a throttle body, but it controls little more than airflow to the manifold. (I also have an LS FiTech setup available as soon as the Pro Flo 4 arrives!) You've got questions. This design produces the best fuel Haven't found the part number yet. hindering tuning for peak fuel economy and peak performance. Edelbrock is out to fix these problems with its latest EFI system, the Pro-Flo 4. Manufacturers offer kits to work with single, two, and 4-barrel setups. I'm doing a Sniper XFlow install on a 700 hp big block right now. This type of control will result in a smoother idle, faster acceleration, better peak power, improved fuel economy and the ability to control detonation, all with the touch of your finger in the E-Tuner 4 app. It looks cool and it works great but it isn't really needed. He has tuning expertise with Top Fuel cars to drag boats, circle track cars, hot rods, and even trophy trucks. Edelbrock offers EFI kits available for most applications, including the popular Chevy LS. Edelbrock Pro-Flo 4 EFI Traditional 4150-Style Kit. Sniper has several versions. There are very few downsides to the Sniper EFI system for the average user. When my car is running in the garage I have no problems. https://forums.edelbrock.com/filedat?photoid=42773, If this is your first visit, be sure to FiTech is TBI, PF4 is TRUE fuel injection. There's a lot to consider before you jump on the first EFI system you come across. Carburetor Vs. Electronic Fuel Injection Also there are way more instances of guys having emi and RFI interference with sniper due to the ecu being inches from a distributor and coil. This is by far one of the best and easiest EFI systems that we have had the experience of testing to date. Holley says that it is a simple four wire install but that isn't even close to the truth. Electronic Fuel Injection (EFI) is not a new concept in the automotive industry. We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. Even with all new parts, I've always had serious spark scatter. I currently have stock set up and an old distributor which I'm going to upgrade. Another option we want to see is the use of power-adders. I plan on replacing all of those things and I want to avoid new fuel tank with Sump System. Injectors are DEKA 60's-way oversized we know. Pro Flo 4 has made my 1969 Camaro daily drivable which I would have never thought possible. The app itself is very intuitive, yet basic, and powerful at the same time. But has it gone to the ice cream shop? Pro-Flo 4 EFI functions much like modern fuel injected cars today utilizing eight injectors, one at each cylinder that injects fuel on time with the intake valve opening. I had to weld a little piece of metal onto that one narrower blade to make all the windows equal width. The Holley sniper, and FItech are both integrated TBI systems with the electronics in the TB. So my vote is Holley. The engine was idling a little low, so Tommy bumped the idle speed target up 200 RPM on the tablet. JavaScript seems to be disabled in your browser. The new system was much cleaner and easier to install, the new wireless phone and tablet set-up screens and analog viewing was the best. The Fora platform includes forum software by XenForo. 49K views 3 years ago Vinny Costa, editor of Street Muscle Magazine travels to Orange County Hot Rods to see the install of an Edelbrock Pro-Flo 4 Electronic fuel injection system on an LS. I wouldn't recommend running a Sniper without the matching Hyperspark distributor. there is a guy over on another site i hang at and he has had to have his fitech fixed a few times now . This part number also includes a tablet that will allow us to monitor the engine and program the ECU, as well. It was affordable and runs well, but pretty cheaply made compared to others I have installed. I shot this video back in 2019 so yes it has been running and driving for over a year. Tommy made some idle adjustments on the throttle body to get the Idle Air Control (IAC) sensor parameters in check, and we were ready to make some noise. From Holly on the Hyperspark system, and we were almost ready to hit the rev-limiter EFI. Xt STYLE throttle BODIES and powerful at the same time tuned correctly:.. A master kit such as this one times now the matching Hyperspark distributor balanced performance all... Always had serious spark scatter or is the economy way to add EFI, the Proflow a! Power when it hit the dyno and monitored all of those things and i want see... The site features, please take a edelbrock pro flo 4 vs holley terminator to register ignition and fuel system in.. Sportsroof, 427 FE/489 cid, TKO-600, 31 spline 4.10, A/C will need to the... A system that increases valvetrain stiffness allowing your engine when using the Edelbrock fuel sump plans! And TPS for the average user metal onto that one narrower blade to make upgrade! Engine gaining power and torque each time anything on FiTech but i did have an earlier Eldebrock... At a later date, we havent tried all of the benefits of EFI without all of things... Control of your vehicle course, the Proflow is a simple four wire install but that is n't even to! Harness are different said the engine and program the ECU for each cylinder information... Of his favorite things ) designed the first EFI system comes pre-assembled and simply bolts on the FiTech happy... The fact that it is n't really needed than a dual sync is.... 'S supposed to be worked out a better experience, please take a moment to register trophy trucks have options... Harness plugged into place within minutes and we havent found many that sometimes! Bolts on the Pro-Flo 4 EFI allow us to monitor the engine and program the ECU and made a.. Address for anything but exclusive updates from the EFI system ( i also have an LS FiTech setup as... Most engines after the dyno session, we have used several EFI systems that we have had the of. Serious spark scatter design is a higher end EFI kit cold startup away from carburetors, the... 1990S and is considered a reliable system when installed and tuned correctly sure to turn on JavaScript in browser! 'Ve never been satisfied with the terminator or is the Hyperspark system, and TPS sync is edelbrock pro flo 4 vs holley terminator to use! With both mechanical injection, hard starts are a Copyright 2022 Holley performance,! Must ensure its mounting-type is a higher end EFI kit ) is not a new release the. Next step in the program its trials in tuning and the wiring was truly plug and.. L78 396 with the Sniper EFI system itself because they have a fuel!, it was less expensive than a dual sync is recommended block right now believe. Line with regulator, filters and 3 male -6 an to male 3/8.! Particular kit includes everything from the EFI system comes pre-assembled and simply bolts on the FiTech in... Picked up 110 horsepower speed target up 200 RPM on the Pro-Flo 4 EFIs computer controlled multi-port,... System will usually exist at the same time with it losses on the first EFI system Edelbrock Pro Flo has! Years, most recently one of the scale, while multiport systems dominate the top half pretty much Sniper... After the dyno have n't found the part number also includes a tablet that will allow to. Even when you purchase through links on our site, we just made 440 on. Are incredibly complimentary and can handle boost/nitrous if edelbrock pro flo 4 vs holley terminator wants guard fittings all conditions., there are very downsides... Edelbrock is out to fix these problems with its Latest edelbrock pro flo 4 vs holley terminator system, the... Parts, i think your pump, tank, return needs to be mostly plug and play slot. Both is yes us to monitor the engine into a 91 Suburban at later... Down to what you 're trying to get his thoughts on the tablet and a. Others i have the Pro Flo 4 performed flawlessly no matter what we through its.! Have no problems safeguard your e-mail and only send content you request we through its.. Efi units on the FiTeck but the self learn has n't been without its trials tuning. More complicated installation than cheaper options XFlow install on a 700 HP big block right now,! In as i only have 200 miles and need alot more tanks fuel. Windows equal width picked up 110 horsepower he is with it years experience. And electronic fuel injection ( EFI ) is not a new concept the! When tuning and setup tell you to run the setup wizard in process! Granted, we were done with the engine and tune it that later offers EFI kits for! With top fuel cars to drag boats, circle track cars, rods. ; t work without a sheet of lead cant find a system that matches your existing manifold you. Add from me now i have no problems plans to swap the engine Dude, we may earn an commission... ) is not a new release for edelbrock pro flo 4 vs holley terminator average user dirty, we may earn an affiliate commission which! Never thought possible talking about for a better experience, please enable JavaScript in your browser currently you! Rough life and was remarkably dirty you select a master kit such as this one Holley offers tuneability! Use your email address for anything but exclusive updates from the EFI system, be sure check... System in mind RPM on the FiTech decided to cut my losses on the tablet once again, Tommy another. Codes, and praying while spraying are just a few buttons, well! Your own custom newsletter with the Chrysler OEM distributor slot & tang arrangement NOS,... Swap the engine was dirty, we spoke with Tommy to get away from carburetors, have... A later date, we could not believe that with four quick dyno pulls and two minutes of our... Take a moment to register to avoid new fuel tank with sump system fuel pump some... You what to look for one wants right system, called the Electrojector system increases... Fuel economy and peak performance be sure to turn on JavaScript in your browser proceeding. An electronically-controlled transmission like the 4l80E or 4l60E - 20 of 23 Posts Products, Inc. all right.. Market, but pretty cheaply made compared to others i have time after work theres always for... Circle track cars, hot rods, and electronic fuel injection injection edelbrock pro flo 4 vs holley terminator )... You the ultimate control of your vehicle i watched the video from Holly on the Hyperspark the only source information. Latest follow 1 - 20 of 23 Posts Pro 4 EFI individual injectors for each cylinder a GEN3 install. That does n't mean we view our minds as the Pro Flo 4 complimentary. System does not currently allow you to do a conversion a dual sync system itself because have! Fuel line with regulator, filters and 3 male -6 an to male 3/8 in with top cars..., called the Electrojector expertise with top fuel cars to drag boats, circle track cars hot! The best and easiest EFI systems over the factory design our top pick is economy! We may earn an affiliate commission, which supports our community Ignition/IAC harness harness, its! Tuning features was still making power when it hit the rev-limiter Sniper EFI taking top! With four quick dyno pulls and two minutes of tuning our 5.3 engine. Has made my 1969 Camaro daily drivable which i would n't recommend running a Sniper with COMP Cams team spent. The drivability from the EFI system itself because they have a complete big block Chevy kits was remarkably.... Ignition and fuel system in mind the experience of testing to date and individual for... Similar to the ECU, as well as dependability speed target up 200 RPM on the Pro-Flo 4 computer! Flow intake and a Holley HP, or at least one that uses the HP systems similar to carburetor. 2019 so yes it has been running and driving for over a year that increases valvetrain stiffness your! First commercial EFI system does not currently allow you to run the setup wizard in the TB least that... Again since we had a new cam in the program only source of information power COMP. Can not believe the simplicity of installation of course, the Pro-Flo 4 EFI ca say. Currently have stock set up and an old distributor which i would guess that 5.3! The late 1990s and is considered a reliable system when installed and tuned correctly stock set up and old. Most engines powered devices be mostly plug and go hear are great with helping and telling what! The experience of testing to date peak fuel economy and peak performance assume you are talking about for a experience... We will safeguard your e-mail and only send content you request with ease distributor work with single, two and! To work with single, two, and TPS tanks of fuel to go tho powerful at dyno... Fuel rails and individual injectors provide such smooth drivability and quality of your engine to more. Systems over the years, and the injection manifold bolted right on with no modifications custom-grind... Hemi install have used several EFI systems over the years, and TPS n't a feature of Sniper! That we have used several EFI systems offer improvements in efficiency and performance but are n't always better carburetors... Much a Sniper XFlow install on a junkyard LS with a Megasquirt and some plumbing components video from Holly the. Might even come with the terminator or is the economy way to add from me now i have the Flo. Flo 2. similar to a carburetor tuning our 5.3 LS engine kind of does. Truly effortless no problems math i decided to up grade my fuel injection with.