Dual Tank Fuel Pump Kit

Two tanks. One return line problem. EFI needs a return line. On a dual tank truck that return has to go back to the tank the fuel came out of. Get it wrong and you overfill one tank while the other runs down to the pickup and starts drawing air. This kit does the switching for you. Valve; relay; switch and harness in one box; wired so the return always follows the draw. Rated for fuel systems up to 400 HP with Holley MPI; TBI and Terminator EFI. Keep the factory dual tank layout. Run modern fuel injection. You do not have to pick one.

  • Return goes back where it came from - the valve follows the draw so one tank never fills the other.
  • Keeps the dual tank layout - no deleting a tank to run EFI.
  • Complete switching - valve; relay; switch and harness in one box.
  • Rated to 400 HP - a published ceiling instead of a guess.
  • Built for Holley EFI - MPI; TBI and Terminator systems specifically.

Install Level: Intermediate - fuel system plumbing and switched electrical

For Holley MPI; TBI and Terminator EFI systems.
Supports fuel systems up to 400 HP.

Holley
SKU: 34-39 ISBN:
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Dual Tank Fuel Pump Kit
$155.95
Overview
Specifications
Tech Resources
Compatibility
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.

Features:

  • Fuel pump kit for systems up to 400 HP
  • For Holley MPI, TBI, and Terminator EFI systems with dual fuel tanks
  • See Associated Comments for more installation information
  • Includes switching valve, relay, switch, and harness
Holley part number 34-39
For Holley MPI; TBI and Terminator EFI systems
Dual fuel tank applications
Supports fuel systems up to 400 HP
Includes switching valve
Includes relay; switch and harness
Vehicles with dual fuel tanks running Holley MPI; TBI or Terminator EFI.
Fuel systems up to 400 HP.
Tagged for 1967-72 Ford Trucks.

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