So.. The ground from the battery has three wires come off of it. One to the starter, one to the chassis, one goes to a wiring harness. The two to the starter and chassis have disconnects that hold bare wire in them by a flat head set screw. The chassis wire was getting so hot that it melted the rubber protective sheath, had corroded the set screw so bad it couldn't come apart. It comes off the battery as 6 gauge wire but 8 gauge wire continues on the chassis side so I replaced the entire thing with 6 gauge. Now it starts up with 14v and goes up to 14.7 while cruising. At hot idle it's 13.7ish. I've driven it two days for over 250 miles and have had no problems with the electrical system now.
