Here is one from the Tech Archives about the 337. https://board.moparts.org/ubbthreads/show...e=1#Post4613252 I think it might also be a good manifold for your use. I would give the nod to the 2D in your application though. Go roller. Get the block set up for a roller and you will likely not have to do any block mod's in the future unless you really step it up.
