[Snake72]

Thanks guys, that confirms what the engine builder advised doing. Will be sticking with cast intake, yes the quadrajet, and stock manifolds unless I find a crack when blasting them. I saw some guys were able to run the vette exh manifolds with 2wd cross members but the downpipe was tricky to run. I'd rather not use those unless I was choking the 383.

Will be running duals with H or X pipe and a 40 series or similar type muffler.