inj BBC 505... 170 deg on the starting line ...with the waterpump running..gains zero heat during the run.. picks up 10-15 deg when we lift at the finish line ...turn the fans on after the finish line...pick up the time slip park the car and its at 170 deg...another nice thing about getting the motor temp up is the oil starts get rid of any water build up..this starts to happen at @ 170 deg ...my alcohol carb set up I leave at 180 and see 200 after the run...very little water in the oil