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I have a B body manifold but I need to get it cleaned and shot blasted. The closest thing I had at the time was a C body magnum manifold. The passenger side A manifold most likely flows the same as the B body



The A body PS side manifold is a little different in the rise just behind the # 6 outlet to clear the inner fender I assume , not sure if it is a restriction. If I ever get around to getting my 383 on the dyno I'm going to run the A body and B body manifolds on it as a comparison.