Mike Meziere buys CNC machines from us that he makes these pumps with, I have 2 of his pumps on different engines. He and I had a long discussion about this. He felt it was hard on the pump motor when the thermostat was closed. He felt there was no need to run a thermostat. I run a gutted Thermostat as a restrictor ring on my 66. Car runs about 180deg when I drive it on the road with a block filled to the bottom of the freeze plugs.
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65 GTO, Tiger Gold, Nostalgia Super Stock 421, 2-Carter AFB carbs, Stock Suspension, 3550lbs Full Exhaust-- 9.70's@135
66 GTO (Retired race car)
421 CID
Multiple NSCA/NMCA World Champion
66 GTO 389 3x2, 4 speed, 3.90 gear, Montero Red 33K original Miles
67 GTO 2dr Post, 428, Tri Power, 3.55 Gears
80 Trans Am Black SE Y84 W72 WS6
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