Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. The Holley 12-804 fuel pressure regulator features 3/8" NPT in/out ports.
Holley Fuel Pressure Regulator 4.5-9 Plus 0-15 Marshall LF Pressure Guage
HOLLEY Fuel Pressure Regulator Diaphragm REPAIR KIT QUICK FUEL 35-100
Holley Fuel Pressure Regulator & Liquid Filled Gauge Kit 4.5-9PSI
Holley Fuel Pressure Regulator. Chev. LT1. #512-507
Holley Fuel Pressure Regulator
Holley Fuel Pressure Regulator 2-Port 4.5-9 PSI Black with Bracket USED
