Thanks for the responses! I will look at rodding/ flushing the radiator. I have a new thermostat I can install as well.

Right now I have 31" tires on it, looks like I'll have to make a choice between bigger tires or taller gears. I think I can get a hold of some taller gears, my buddy has a few mighty max.

I bought a dark blue one in the Lacey area.