I've been running a 79 351W for awhile now. Even in the summer on vacation trips I still don't have cooling problems. I got a stock water pump, stock radiator, flex-a-lite fan and a 160 degree thermostat. I still have cast iron heads so thats why i haven't upgraded my cooling system yet. If you can't figure out why it's running hot, throw in a fluidyne aluminum radiator and an edelbrock victor water pump, I guarantee you'll never overheat again.
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