For all Holley MPI / TBI / Terminator EFI systems up to 600 HP GM Gas " The Stage 6 package includes

The Stage 6 package includes a Co-Pilot Transmission Lock-up Controller

With our engineering on the XP Series K16 pumps you can produce more fuel output with less pumps

Torque Resistant Clam Shell Design Composite Uprights

including hardened parallel washers

Replacement Cap Part C108304MB02

For all Holley MPI / TBI / Terminator EFI systems up to 600 HP GM Gas " The Stage 6 package includesThis 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 all TBI 4 bbl Pro Jection and 950 MPFI 4 bbl TBI systems.