Its just a cruiser. I picked up a set of brand new Magnum heads for free, and a dual plane Magnum M1 for next to nothing. Im just messing around with it and maybe looking to get a little more out of it. Its in a 4000lb 78 Fury so its not a strip terror or anything like that. Should I go ahead and still plan on using the aftermarket 7.65" pushrods as well too?