FAST 30226-06KIT Self Tuing EZ EFI Fuel Injection Base KitEZ EFI Base Kit Fuel Injection EZ EFI Base Throttle Body Square Bore 74 lb hr Injectors 1150 CFM Universal Kit The next generation of the world simplest self tuning fuel injection system is here. Designed for all applications making up to 650 horsepower, FAST EZ EFI Fuel features a new die cast and black powder coated, four injector throttle body with integrated fuel rails. It provides even better fuel distribution and more airflow than the original.