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 12-880 Adjustable Billet By-Pass Fuel Regulator Adjustable 4-15 psi Boost
Holley 12-880 Adjustable Billet By-Pass Regulator, -6 AN
Holley 12-880 Adjustable Billet By-Pass Regulator-6AN
