Not built yet but will be between 351-400ci sbf with AFR220 heads. If cam and other variables are speced correctly what route would you go? For local class I'm limited to 88mm cast wheel like a SX500-88 at 3300lbs or 82mm max for billet wheel at 3250lbs. Can the 82 billet hang with the cast 88 at only 50lbs less? Would like to be able to swap to billet 76 or cast 80 for ultra and classes that don't allow the bigger turbo so what ci limit should I not surpass so I can still use smaller turbos? Thanks!!