Phenolic Plastic Carburettor Spacer, 1-11/16" Ported, 1/2" Spacer RPCR9138 Product:Fits Holley/AFB Four Barrel Carburettors, Gasket & 2" Stud Kit Includ 90° Full Flow AN Bulkhead

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Phenolic Plastic Carburettor Spacer, 1-11/16" Ported, 1/2" Spacer RPCR9138 Product:Fits Holley/AFB Four Barrel Carburettors, Gasket & 2" Stud Kit Includ 90° Full Flow AN BulkheadPhenolic Plastic Carburettor Spacer, 1 11 16" Ported, 1 2" SpacerFits Holley AFB Four Barrel Carburettors, Gasket & 2" Stud Kit Included RPCR9138 CR9138 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