Offenhauser makes two different manifolds for the AMC 6 cylinder engines. One is the Dual Port and the other is the “C” (Competition) series manifold. The Dual Port completely separates the primary portion of the carburetor from the secondary portion of...
Although the 6019-DP was designed to be used with the factory exhaust manifold and use it as a source of heat for the intake manifold, a 601-9DP can use engine coolant for heat (but it may not be a simple bolt on addition). Manifolds made since 2015 have used a...