a few weeks ago i lifted a head and blew a cometic gasket, so i ordered another gasket and they sent me the wrong one (.o60 instead of .040) so i took a few layer out to make it .040. well i lifted the head again the next time i took it out. i reused the head studs, do you think it could be the studs or maybe me taking apart the cometic gasket. i took a stright edge to the heads and block and they looked good.