Holley EFI - Dual Tank Fuel Pump Kit 534-38

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 all TBI 4 bbl Pro-Jection and 950 MPFI/4 bbl TBI systems.

Features:

• Includes switching valve, relay, switch, and harness.

Specs:

• Brand: Holley EFI
• Category: Fuel Pumps and Accessories
• Emission Code: 5
• Fuel Delivery Type: Fuel Injection
• Fuel Sending Unit Included: No
• Fuel Type: Gasoline
• Gasket Or Seal Included: No
• Grade Type: Performance
• Inlet Type: Barb
• Internal Or External: External
• Mounting Bracket Included: Yes
• Mounting Hardware Included: No
• Negative Ground: Yes
• Outlet Type: Barb
• Product Type: Dual Tank
• Regulator Included: No
• Seal And Lock Ring Included: No
• Strainer Included: Yes
• Universal Or Specific Fit: Specific
• Warranty: Limited 90 Day
• Wiring Harness Included: Yes

Tech Resources:

In addition to the items included in this kit, you will also need fuel hose, EFI pressure rated hose clamps, 18 gauge wire, a 10 AMP inline fuse, assorted terminals, and assembly lube (Earl’s P/N 184004ERL or equivalent mineral oil that is compatible with your hose). The selection valve switches tanks by reversing the polarity of the “D” and “E” terminals. Many trucks equipped with dual tanks already have this type of selection valve along with the associated hardware.

Instructions - 199r9923rev1.pdf