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Old 12-05-2009 | 10:41 AM
  #9466  
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grizz1
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If your running 25 - 30% nitro you might like to try a cooler plug. The P3 is an ultra hot plug. Try the O'Donnell 77T (hot) or 97T (med), or the new GO T4 (med hot).
With high nitro content a cooler plug can work better.
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