[madmaxx]

Do nothing the temperatures you state are pefect. The optimium temperature for engine longevity is 100C or 212C, anything below 180F you are wearing your engine out since the pistons get hot and expand but the cylinder wall stay cool and do not expand. In my opinion you are in the sweet spot. The bs about a cooler engine develops more horsepower may apply to John Force in drag racing but for our engines you would never know or feel the difference.