leaky heads gaskets, I'm losing it!

Were the heads magnafluxed? Also was the block ever Square decked? I had an X block that would drip in the center on each side off of the rivets using Cometic gaskets. As soon as it would get a little heat in it it would stop dripping. When freshening the engine and square decking it we found the deck on each side had a low spot . Check the deck with a good straight edge and a light source. Also have the heads magnafluxed. Just precautions to take so you know for sure that is not your issue.