The FAST EZ - EFI 2.0 Fuel Ignition works with either generation of EZ - EFI throttle body, multi - port systems and Inglese throttle bodies. It is compatible with in - tank, inline, high horsepower inline, return style and returnless style fuel pumps. Electronic fuel pressure measurement is standard on all kits, and each one works with a wet nitrous system, providing built - in timing retard and special nitrous AFR targeting. The EZ - Ignition can work with most common ignition systems, while precision control requires a FAST distributor or crank trigger.