my father in law gave me the block and told me it was in great shape. he said he had it checked at a machine shop. as for the heads... ive been reading up and there is a lunati 305 rebuild i ran into on the internet and im gonna try to use the same parts they did. this ought to work out good since they used the same cam as i am intending. they used 1 : 1.5 ratio long slot rockers. then they replaced the valves 1.84 with larger ones 1.94. then high performance springs, retainers, locks, pushrods, pushrod guideplates, and screw in studs.