One of the big things to look at too is airflow in to the engine bay from the front bumper. The standard bumper doesn't have a very big intake compared to after market bumpers.
I've run in the 90's on track with my setup but hardly had any issues where I'd slow down on track for water temps. Usually more down to the tyres going off. I'm not running as much power as CJR, only about 430bhp at the flywheel now.