190/195 thermostat? might try a 180, but usually no stat at all makes for hotter - what rating pressure cap? a 14# [probably what the Camaro had] might take 250* but I don't think an original rad would stand that for long, and I'd expect a 7# to blow off itself by 250* .... have you used a laser thermometer to check the actual temp compared to the gauge? I'd suspect a gauge problem or electric fan impeding air flow
Bill
