spark plugs in gsr/type-r??
I'm sure this question has been asked before but I can't find much info. I have a 94 GSR motor with US Type-r pistons,CTR cams,Mugen thin headgasket,JDM ITR header and a Skunk-2 intake. Which sparkplugs are prefered,stock GSR,stock ITR or something else. Thanks for the help.
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