Designed for 1970-91 304-401 c.i.d. and 1967-69 290-390 c.i.d. V8s, RPM Air-Gaps incorporate the same race-winning technology as our Victor Series competition intakes. Edelbrock AMC Air Gap Manifold 304-401 c.i.d. Engines Edelbrock Performer EPS series carburetor Electric Choke Kit. AMC:-:304 (5.0L)-401 (6.6L)