I got a 46 1/2 ton with a 56 235 6 cylinder bored .60 over with a worked head and a full race cam, clifford 4 bbl intake, and holley 750 dual feed with a custom made header, that pushes around 400 horsepower backed up with a t-5 tranny and a ford 9in. rear, that gives those old chevelles and camaros a run for they're money