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  1. 1964-1974 Tempest/Lemans/GTO Exhaust/Susp/Brakes
    So i broke down and bought a set of QA1 front coilovers with the 450# spring rate. There isnt any other threads that i can find relating to my inquire other than one from 2018 that mentions rates, but the answer is to vague to make a judgement call. Is 450# sufficient for a stock 400 with PS/AC...
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