I have a threaded thermostat housing, but I have a switch there that turns the electric radiator fan on. For now though, the switch is bad and I am using a manual bypass switch on the dash if I need it. Running the electric fan does not hep at idle, at all. So the radiator is not flowing enough to make a difference.

I raised the metering rod in the carb (1bbl) a little higher today and now I can do one sided burnouts on wet pavement, LOL.