there are so many opinions on cooling, i too was kinda paranoid when i started hitting over 190, but as far as i understand the new cars are running in at about 227, and i have a fairly potent 350 in the rear of a porsche 930, it was about 90 here today i idleing in the garage it was bumping 205 after a drive around, i was told optimum temp for zero wear was around 200 deg. i do know i have to burp the system as it is new and sure i have some air in it, but it seems to just want to set in and run 195-200, that is with a gauge mounted on the water port of the intake manifold #2 piston area, i have a restricter to slow the water down in the system to give it more time in the radiator.think ill have my fans kick on earler maybe...any other suggestions would help.