How much HP is it taking now? How much do you want to have total with the spray? I have a friend who has raced heads up(not a Mopar engine) with both types of blocks, aluminum and cast grey iron and went faster and with the iron blocks, he used all three types of power adders on that car, NOS, twin turbos and a Pro Charger. The iron wedge head block was the fastest and quickest
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
