I'm running a 496 Gen VI block, 13.5 :1, Dart Pro 1 335 cnc'd heads, pretty radical for the street. I drove it around a couple days ago, and watched the temp climb to near 200. Is that reasonable? If not, how can I bring it down? I have a be cool alum radiator, w/ fan, electric water pump, 180 thermostat. Thanks for any input.