1. The starting point for our install is FAST's (Fuel Air Spark Technology) EZ-EFI unit. This system is one of the easiest ways to either convert from a carb to EFI, or switch from a limited factory EFI system (like in our case) to a modern one with programmability, and better adaptability to performance mods. The system uses a throttle body equipped with fuel injectors and sensors, with a Holley base flange. This gives the EZ-EFI system an almost universal application, as long as your intake can accept a standard Holley flange.