I have done a number of things to keep my beast cool. 160 thermo, alum radiator, high flow water pump, bigger pulley for the water pump, an electric fan as a pusher and a mechanical as a puller. On hot days above 75 it will go to 200. but as long as im moving it will stay round 190. The block has a sleeve on #1 thou. I guess my only thing left to do is a better air flow. did mounting an electric fan as a pusher help or hurt? my mechanical fan is a summit low pro. Any links to a good fan set up? keep in mind $.