M1 Sb intake. Best for small blocks?

K.O. SWINGER said
Two things stand out to me the 323s and what I am assuming is a stock converter if you went to a 355 rear end ratio and a 3,000 stall converter you would not believe the difference out of the hole. The hotter camshaft you have combined with a high-rise manifold are actually not really benefiting you with that setup it doesn't start to come into play till around 4500 from there on up is where it will pay dividends tire size also comes into play

I disagree on that much converter and your listed 4500 rpm. I’ve run a slightly bigger cam (218@050) and the low end was OK. Not great. A stock converter can be used. A factory high stall (2500) would be better. The issue is where he will cruise at. I would not want it stalling. A loss of power and an overheating transmission is at the boarder line, IMO....