EFI Fuel Tank Module 350LPH 73-87 GM Truck

This Holley OEM-Style EFI Fuel Tank Module (MPN 12-378) is designed for 1973-1987 GM C/K Series Trucks. It features a 350 LPH free flow rate and is internally regulated to 58 PSI, eliminating the need for an external fuel pressure regulator. Excess fuel is returned directly into the tank, removing the requirement for a separate return line. It serves as a direct replacement for the factory pick-up and sending unit, with a pre-calibrated fuel sender to work with the original fuel gauge. The module includes a 5/16-inch inlet diameter and a HydraMat filter for consistent fuel availability and protection from contaminants. It allows for retention of the factory fuel hard line by connecting with an EFI-rated hose.