Edelbrock 20254 Performer RPM Dual-Quad Air-Gap Manifold and Carburetor Kit Comes with the new EnduraShine finish and a bright silver chrome look Does not fade, oxidize, or discolor Includes dual-quad air-gap intake manifold, intake gasket kit, high-tech progressive linkage, braided fuel line, and a pair of Thunder AVS 500 CFM carburetor, one with manual choke and one electric choke Highly durable