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Just bought a temp gauge for the first time. Anyone know what a good/optimal operating temp is for a 350? When running hard in the sand, im pretty sure its something around 215/225... Give me some informed opinions.
 

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ESR says you should be around 180 or less. My Dad's 350 runs about 170 to 190 with stock radiator in the sand. We only use about 25% antifreeze. Water dissipates heat better.
 
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