Steve, I don't see a problem in running the restrictor plate, but I don't have any experience in doing so. It is my understanding that once the thermostat opens, it shunts off the hat not allowing the hot water to stay in the engine and forced out the thermostat to the radiator to get cooled. AS you mentioned, we are in So. Calif. and the Pantera is garage, so in dead of winter, it might get 40-Degrees outside so maybe 50-DEgrees in the garage. I use the KISS principal; it was working before why change. My 2-cents. Hope to see you at the OC Panteras meeting next week. Larry
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