I'm running a '69 351W in a 88 pony. I used to have overheating problems too. What I did was get a 3 core radiator and took the regular fan off and installed a 16" electric fan with a 180 degree thermostat. Another thing I did was moved my timing to 39 degrees total advance. With my MSD Ignition, even when it does get about 220 degrees it fires right up. But as for overheating, that's a thing of the past.
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