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  1. #1
    All hail the Chief! fullboogie's Avatar
    Join Date
    Nov 2005

    Good information on reading spark plugs

    For those of you interested in learning how to properly read spark plugs, there is an excellent 4 page article in this month's Car Craft. Definitely worth the $4. It discusses heat ranges, build materials, reading the porcelain for idle, mid range, and WOT, etc.

    For those of you who refuse to even buy a good tach, don't bother

  2. #2
    Heres one of my fovorites with pics.>>>

  3. #3
    Hydrotherapy's Avatar
    Join Date
    Sep 2006
    The Rock
    thats great...should be a sticky

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