Ok, found my extreme heat problem. A HUGE section of cancer directly above the exhaust, under the pass. seat. It's about the size, and shape of a large eggplant. The previous owner or whatever, covered it up with rubberized undercoating. Didn't even see it. Happened to find it while checking the exhaust for cracks. My hand hit the floor and the floor MOVED!! WAY too easily! CRAP!!! Now gotta try finding some patch panels or something.
UGGHHHHH!!!!!!!
UGGHHHHH!!!!!!!