New hammer what will it run?
I'm guessing a sub 10 sec is goal? My Duster 451 went from pump gas 10.5:1 comp to 12.5:1 E85. Replaced well ported iron 452s with mod ported B1/BS head. New flat top Ross pistons. Replaced stock RB rods with BME aluminum rods. Same 727 trans. Same 4.56:1 spooled 8 3/4" rear. Same 30x10.5 tire. Car weigh went from 3110lb to 3060lb. (With a couple other small weight reduction efforts.)
Car went from 10.80s to 10.30s. (I too was hoping faster. But I find I NEVER go as fast as I hope. Lol)
You however are changing cubic inch. Thus should see more result than my efforts. Mine still remained 451.