Add to Favorite Sellers. 12-846KIT Holley EFI Billet Bypass Fuel Pressure Regulator Kit. 15-60 Psi – Fittings and Gauge Included; Holley EFI Billet Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-846 regulator features a billet aluminum body and a black finish for […]

Add to Favorite Sellers. 12-846KIT Holley EFI Billet Bypass Fuel Pressure Regulator Kit. 15-60 Psi – Fittings and Gauge Included. Die Cast Aluminum Construction. Adjustable from 15-60 psi for precise fuel pressure adjustments. Used in return style systems with a line back to the fuel tank. 8 AN O-ring Inlet, Outlet, and 6 AN O-ring […]