Phenolic Plastic Carburettor Spacer, Open Center, 1/2" Spacer RPCR9139 Product:Fits Holley/AFB Four Barrel Carburettors, Gasket & 2" Stud Kit Includ 65 oz (78 ml) Flanges

65 oz (78 ml) Flanges None Height7

ORB-12 Inlet Port

6 or 8 cylinder tachs

Up To 750HP Aspirated (Non EFI Pump)

Phenolic Plastic Carburettor Spacer, Open Center, 1/2" Spacer RPCR9139 Product:Fits Holley/AFB Four Barrel Carburettors, Gasket & 2" Stud Kit Includ 65 oz (78 ml) FlangesPhenolic Plastic Carburettor Spacer, Open Center, 1 2" SpacerFits Holley AFB Four Barrel Carburettors, Gasket & 2" Stud Kit Included RPCR9139 CR9139 Made out of phenolic resin and engineered to reduce heat transfer from the intake manifold to the carburetor that provides a denser air fuel mixture for increased power and efficiency. Includes mounting hardware and gaskets for a no hassle installation. Specifications: 1 2" Thickness Fits Holley 4150 4160