This dual-tank fuel pump kit lets Holley MPI, TBI, and Terminator EFI systems run on vehicles equipped with dual fuel tanks. Because these fuel injection systems need a return line, fuel must be returned to the same tank it was drawn from. The kit was originally engineered for 4-barrel Pro-Jection and 950 MPFI/4-barrel TBI systems.
Specifications:
- Product Type: Dual Tank Fuel Pump Kit
- Compatible Systems: Holley MPI / TBI / Terminator EFI up to 600 HP
- Includes: Switching valve, relay, switch, harness
- Fitting Style: Barb
- Part Number: 534-38
Also required but not included: fuel hose, EFI pressure-rated hose clamps, 18-gauge wire, a 10-amp inline fuse, assorted terminals, and assembly lube. The selection valve switches tanks by reversing polarity on the "D" and "E" terminals — many dual-tank trucks already have this type of valve and hardware.
FAQ
What is this kit designed for?
It lets Holley MPI, TBI, and Terminator EFI systems run on vehicles with dual fuel tanks, supporting up to 600 HP.
Does this kit include fuel hose?
No. You'll need to supply your own fuel hose, EFI-rated hose clamps, 18-gauge wire, a 10-amp inline fuse, and terminals in addition to the kit contents.
How does tank switching work?
The included selection valve switches between tanks by reversing the polarity of the "D" and "E" terminals.
What systems was this kit originally designed for?
It was originally developed for 4-barrel Pro-Jection and 950 MPFI/4-barrel TBI systems, and also works with other Holley MPI/TBI/Terminator EFI systems up to 600 HP.
