Holley 12-846 Dominator Billet EFI Two-Port Adjustable By-Pass Fuel Pressure Regulator, EFI 15-65 psi

The Holley 12-846 Dominator Billet EFI Two-Port Adjustable By-Pass Fuel Pressure Regulator, EFI 15-65 psi is a precision-machined billet aluminum fuel pressure regulator designed for EFI systems requiring a return line. It provides adjustable fuel pressure from 15 to 65 psi and is ideal for use with Holley HP in-line or other high-pressure electric fuel pumps.

Key Features

Adjustable fuel pressure range from 15 to 65 psi for precise tuning
Billet 6061-T6 aluminum construction with black anodized base and clear anodized top for durability and corrosion resistance
Includes fittings for manifold reference and a 1/8" NPT gauge port
Designed for EFI systems with a return line; includes (1) -8 AN O-ring inlet, (1) -8 AN O-ring outlet, and (1) -6 AN O-ring return
Mounting bracket included for easy installation
Recommended for use with electric fuel pumps only

Fitment

EFI fuel systems requiring a two-port adjustable by-pass regulator with return line
Compatible with Holley HP in-line fuel pumps and other high-pressure electric pumps

Note: Verify system compatibility before installation. Use only with electric fuel pumps. Proper tuning is required to optimize fuel pressure and system performance.