Holley In-Line Fuel Pressure Regulator - 4-9 psi - 10 AN Female O-Ring Inlet - 10 AN Female O-Ring Outlet - 10 AN Female O-Ring Return - 2 Port - Double Adjustable - E85 / Gas / Methanol ROLA® 500" Valve Guide Cutter from

500" Valve Guide Cutter from COMP Cams will allow the engine builder to machine the cylinder head to the proper size for your spring

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Holley In-Line Fuel Pressure Regulator - 4-9 psi - 10 AN Female O-Ring Inlet - 10 AN Female O-Ring Outlet - 10 AN Female O-Ring Return - 2 Port - Double Adjustable - E85 / Gas / Methanol ROLA® 500" Valve Guide Cutter fromHolley's new double adjustable fuel pressure regulators are designed for belt or cable driven pumps where fuel flow changes with engine rpm. These regulators are compatible with E85 and alcohol applications. Made from billet aluminum, these regulators are offered in both 2 Port and 4 Port models to complete your fuel system requirements. The idle adjustment design is strategically placed so that none of the ports are blocked like other designs. These