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I just put in a bigger radiator that can cool my engine in the summer.

355 SBC w/671 blower, street car on pump gas.

I am running a 180 degree thermostat now with no issues.

Is there any benefit to running a 195* thermostat? I could probably run a 165* if I wanted to.

I was thinking the engine would be more efficient hotter if controlled?

I am also interested in the science behind the logic.

Thanks, Steve