I think your ok. I agree about an air dam to get better flow to the condenser. On my ride ( probably not your issue) new build , ran about the same . I thought my Radiator was too small 440 / 500 Stroker ,Champion radiator, I changed out the brand new 180 Stant t-stat that was in it with another 180 T-stat and the car maintains 180 - 190 . Your radiator is huge compared to mine but I have no a/c .
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