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Old 09-10-2015, 09:43 PM   #1
C10CONFUSED82
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Join Date: Aug 2015
Location: Nashville, TN
Posts: 49
5.3 spark plug and gap ?

Can someone let me what spark plug to run on my 5.3? Also need the gap. Keep hearing platinum, iridium and some say TR55s. What do you all think?
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