I have done a ton of research on this and I think I'm going to get a valve job on them ported heads and run them. It seems that virtually all the 3800 heads are or will crack in this area. I contacted the heads place in the link about being sure if I order them I don't receive ones with cracks in the same area. They replied we magnaflux the heads and we do not repair unnecessary cracks that will not affect performance of the head. So it seems to me that they know of this issue and cut the seats in those heads anyways. Any opinions before I take them back in?