The Edelbrock Standard-Flange Carburetor Adapter allows using almost any carburetor on almost any intake, saving the hassle and expense of purchasing all new components when changing carburetors or intakes. This carburetor adapts a square flange carburetor base to a 4500 series (Dominator) manifold flange. The thickness of this adapter is 2. 00. The carburetor adapters allow proper installation of carburetor to manifold.