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  1. Pit marks on head and piston

    Engine and Transmission
    Hey i wanted someone else to look at my piston and head to see if you think its detonation or maybe my crank bearings are starting to come apart? I had the motor built by a very well known reputable builder who put in a +4 hot rods crank on 4/10/10 and i have ran it only on 110 race fuel with...