plugs for GT40X heads ???

Discussion in 'SVT Forum' started by Cobrakid, Jan 3, 2004.

  1. Cobrakid Founding Member

    Member Since:
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    Hi guys,

    Does anybody know what spark plugs I can instll
    in some GT40X heads that are 2 steps colder???

    thanks,
    Cobrakid, Jan 3, 2004
    #1

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