Posted on August 12, 2016 May 29, 2018What is the lowest HP the Go EFI 8 1200 HP system will work on? The 8 injector system will work on engines from 250-1200 HP. Post navigationPrevious post: What is the advantage of Annular Discharge over the standard injector spray pattern?Next post: What kind of distributor do I need to control ignition timing? 2 comments on “What is the lowest HP the Go EFI 8 1200 HP system will work on?” Kent February 25, 2017 What if my engine is rated at less than 250hp? Will the Go EFI 4/8 not work well? Bryce - FiTech Tech Pro March 7, 2017 The system would not be able to put a small enough amount of fuel in due to 8 injectors and the engine will run rich. We have lower HP models available that cater more to a low horsepower engine.