2-Port EFI Regulator 40-100 PSI

The 2-Port EFI Regulator 40-100 PSI by HOLLEY is essential for modern fuel system management, designed for builders and enthusiasts who are integrating EFI technology into vintage platforms and high-performance builds. This regulator is specifically engineered to maintain consistent fuel pressure across a wide operating range, which is critical for tuning stability and engine response when utilizing programmable fuel injection.

At its core, the 2-Port EFI Regulator operates within a pressure range of 40–100 PSI, providing the stability necessary for both direct-fire and batch-fire EFI systems. Its dual-port design allows for one feed line from the fuel pump and a return line to the tank, facilitating closed-loop pressure compensation that dynamically responds to manifold pressure changes and engine load. Built to HOLLEY's high standards, this regulator features precision porting and a robust internal valve assembly that resists fuel degradation.

Engine builders and mechanics trust this regulator for its reliability and performance in both naturally aspirated and boosted applications, where consistent pressure is vital for optimal combustion quality. Whether converting a carbureted classic to EFI or fine-tuning a modified engine's fuel curve, this regulator provides the necessary control to achieve precise pressure characteristics across various driving scenarios.