M1 Sb intake. Best for small blocks?

I have a mild build 318, 3.23 gears. But im moving to 3.55 gears. 302 heads with port work. .454/.475 cam. 1.5 roller lifters.
Absolutely nothing wrong with that manifold for your combination should be a pretty good fit in my opinion. Do yourself a favor and Google small block Mopar intake manifold comparison there is an article by hot rod magazine and Mopar guru that will really explain a crap load of good stuff.