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  1. sbc pinging

    Hotrodding Basics
    HI my sbc 350/400 hp has a pinging problem. I currently have a mallory unilite distributor with vacum advance. I tried setting my total timing at 33,34,35 degrees and it did not help. I went back to base timing of 6,8, and 10 degrees and no change. The fuel has been changed to fresh 93 octane...
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