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  1. 1964-1974 Tempest, Lemans & GTO General Discussion
    I have a 1966 LeMans, 400 engine, T56 trans and 3.33 rear end gears. For more than two years I have been fighting cooling problems and thought it might be okay until a recent trip to southwest at high altitude and high temps (80-90 F). The engine is a low compression, basically stock 400 with a...
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