Evans Coolant Temps

I see now. Thanks. I guess the way it's written is not very clear to me. It should say 'turn ratio' or something similar. The way it's written can be read it as 'diameter ratio', or such - at least to a bonehead like me.

Either way, I doubt water pump speed is the OP's issue. He has a 22" radiator trying to cool 505 inches.
Well I have a flowkooler water pump too. That’s been mentioned several times. At highway speeds the motor cools down. Not saying it I had unlimited funds I would get another rad but if I can get it to stay cool at idle I’ll kick that radiator can down the road.