found some heads for sale here in wisconsin, casting 3993820, (wants $250 for them) I read a few good things about these heads on different sites, just wanted to know if anyone has used these heads and how well they performed? i think there are like the 781 head but samller chamber, i had a set of 781 heads but one had a crack in it and i sold the other, still in the process of putting together a big block (427 tall deck block, .060 over, 4.500 stroke, going to be dumped in a truck)

thanks