Billet Adjustable Regulator, Carbureted Applications, Bypass Style, Adjustable 4.5-9PSI, (1) -10AN O-Ring Inlet, (1) -10AN O-Ring Outlets, (1) -8AN O-Ring Return|Holley 12-847 Billet Adjustable Regulator.
Holley XP 4600 Adjustable Billet Fuel Log fits Holley Ultra HP & XP Carbs Black
Holley 12-848 Billet Adjustable Regulator
Holley 12-880 Adjustable Billet By-Pass Regulator-6AN 4-65 PSI
Holley 12-842 Billet Adjustable Regulator
Holley 12-846 Billet Adjustable Regulator
Holley 12-880 Adjustable Billet By-Pass Regulator-6AN
