Ngk Tr555
#3
Launching!
Join Date: Mar 2004
Location: Chicago Suburbs
Posts: 240
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Anywhere from .050 to .060 will be suggested. Me personally I like the stock gap of .060...figure the bigger the gap the larger and more powerful the spark. Unless your running a supercharger or turbo you must run a smaller gap so you dont actually blow out the spark of a large gap. Good Luck