Wow, I didn't even think to check elevation. I had no idea we were at almost 6000 feet! I do have the original temp gauge but it's inop right now. I'm gonna put a skosh of timing in it so see if that will help, and then see if I can get ahold of some jets for my holley 650. I also stopped at a car wash and sprayed the radiator out from both sides, though it wasn't too gummed up. Hopefully all of that will help! Thanks everyone!
