[Karl Bebout]

Mister Wyoming, I've had two rat motors in my old NAF hot rod and have not had over heating problems, even during our "balmy" Southern Arizona summers. The 402 had cast iron heads and now my 496 has Edelbrock aluminum heads. I've gotten stuck at traffic lights when the air temperature is 105-110 and not gotten an engine temperature over 190. I use a 160 degree thermostat, a mechanical (belt driven) fan that pulls, an electric pusher that blows through the tranny cooler before the radiator, and I have stainless steel cowlings above and below from the radiator back to the area of the water pump. I don't switch the electric fan but rather have it run whenever the ignition is hot and I don't run over 37 degrees total timing. Hope you get your overheating ills cured. Sounds like you're doing everything right. If people see a Cobra overheat they are liable to think it has a Ford engine. Ouch.