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Old 05-31-2017, 07:12 PM   #6
Rangerscott   Rangerscott is offline
 
Join Date: Sep 2016
Location: Texas
Posts: 165
Just stick with a copper spark plug. Its been proven over and over again they give out the best spark and last just as long. Ive seen several coppers last 100,000 miles.


 
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