Phenolic Carb Spacer for Holley 4150/4160 Open 1/2in

Canton phenolic carburetor spacer for Holley 4150/4160 carburetors, open design, 1/2in thick. Made from phenolic material to reduce heat transfer, designed to insulate the carburetor from manifold heat in street or racing applications. Improves air/fuel mixture by increasing plenum volume, ideal for drag racing or street-strip builds. Includes mounting hardware. Sold as each.