On an lt1 with slightly better than stock VE limited at 6000rpm and 8psi from 2 t3 60trims, would a .63 a/r be large enough to not become a significant restriction before 6krpm or would I need the .82 housing? Obviously you wouldnt want to throw .82's on if the .63's will do the job more than well enough at 6krpm and spool up quite a bit sooner...