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Severe pinging @ Low & Heavy Load - Custom Cruiser Oldsmobile Cars & Trucks

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Check the timing, It might be too high. If this has a 307 engine, the timing needs to be 20 degrees btdc

Posted on Mar 01, 2009

  • Clint Smock
    Clint Smock Mar 01, 2009

    Why is it inappropriate? If the car is pinging(spark knock), it has to be timing, a lean mixture or carbon build-up on the pistons. The timing is easy to check, it is the first thing I would check.

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