![]() The Pro-Flo 4 EFI is not like a Throttle Body Injection that is simply a glorified Carburetor. 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.” Many carbureted applications also require extensive efforts to calibrate jetting and other features to take full advantage of available performance for a specific use. Fuel injection systems rarely need such services. Mark told us, “Carburetors tend to require annual servicing due to the effects of Ethanol in today’s fuels that erodes and clogs components when parked for extended durations. 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. Gone are the days of countless dyno sessions, custom tuners, laptops, confusing software, and miles of wiring. 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. While this method works, it’s costly.Įdelbrock is out to fix these problems with its latest EFI system, the Pro-Flo 4. 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. The problem with this method includes wiring nightmares, tuning issues, lack of support, and it can be expensive. Over the years, enthusiasts have figured out ways to utilize factory EFI systems and adapt them over to fit their needs. It’s impossible to find anything but fuel injection on modern cars these days. Since that time, fuel injection has gained popularity as it increases an engine’s efficiency as well as drivability. This system was developed by Bendix back in 1957. American Motors Corporation (AMC) designed the first commercial EFI system, called the Electrojector. Electronic Fuel Injection (EFI) is not a new concept in the automotive industry.
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