Gapping NGK BR7EF?
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Gapping NGK BR7EF?
I have TR6's in my car now but need to go to a colder plug. So I got NGK 3346 BR7EF plugs. They seem to be gapped at .025 and I was wondering if I should keep them there or go with a .035 gap? You can see in my sig what my set up is. Thank you for your help.