Over heating questions

Yes go to a 180 stat. If your still worried about the airflow when in town maybe a better fanset up or electric in front as a pusher. You can hook them up on a thermostat, I have one on mine set for 200 it comes on when Im in town on a hot day. The original fan seam to work best for me. I think I have a extra 7 blade fan that bolts to water pump if you need one.