A aaron68s Well-Known Member Joined Oct 19, 2012 Messages 119 Reaction score 3 Location louisburg ks Feb 2, 2014 #1 What's the best way to determine what heat range plug I need?
teringer FABO Gold Member FABO Gold Member Joined Feb 22, 2011 Messages 1,078 Reaction score 410 Location kenly nc Feb 2, 2014 #2 compression ,cam choice .type of driving ,exhaust type,
