Seeking Exhaust Advice

Thank you, that is not something I've heard before. My plan was to seek out an accomplished welder who could minimize the openings.
Your choice but there are better ways. I need to read back and see what engine you have. If it's a hot rod you might need headers. Otherwise if you have a 273-4 barrel, a nice dual system off manifolds or a HP single system will be A-OK.