Speedmaster PCE120.1004 2" Phenolic/Bakelite Carb Spacer Square Bore 4 Port

2" Phenolic / Bakelite Carburetor Spacer Square Bore 4 Port The precise design of these PCE carburetor spacers provides a smooth transition of fuel from the carburetor to the intake manifold, to increase flow for more performance. They also help to insulate the carburetor from engine heat and provide clearance for linkages. The precise design provides a smooth transition of fuel from the carburetor to the intake manifold, to increase flow for more performance