200-210* is normal, ping doesn't happen until 220*...I have a stroker and its compression was running about 215 psi, I started to have overheating problems with my warn winch. Aluminum radiator helped but it was not enough...I had to drop the compression and put in a 180 stat to get it under control. My wifes 4.0 never has a problem, even with the AC on and 100* temps, only gets to 215*. Tim