I wouldnt trust ANY factory gauges. I've seen more motors lost because those gauges are inaccurate. Get a real gauge like a autometer on there. Mines has 60 psi cold and 50 warm. never seen it drop lower than 35psi on mine.
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5.3L LSx, Fbody .500 cam, TH400, 4500 Stall, Moser 9"
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