Edelbrock Replacement Fuel Inj (8) for 3503

This Wide Band Air/Fuel Ratio interface unit will not only work with all current EFI systems, but with any aftermarket EFI system that can accept a 0-5 volt input for monitoring Air Fuel Ratios. 29 Lb/Hr Fuel Injector for Edelbrock ProFlo EFI Systems Edelbrock part #3589 Pro-Flo EFI replacement coolant temperature sensor is available for Pro-Flo and Pro-Flo XT EFI systems, Brass, Natural, 3/8 in. NPT Thread Size.