Fuel Pump Kit for Holley 2 bbl TBI EFI systems up to 400 HP

This kit is designed to allow the use for all Holley MPI / TBI / Terminator EFI systems on vehicles equipped with dual fuel tanks. The fuel injection systems require a fuel return line. In dual tank applications, the fuel must be returned to the tank from which it was drawn. Originally designed for 2 bbl Pro-Jection PN 502-20S.