Not Ranked
I have been running champions for 3 years. The best race plug out there, champion. I know some cup teams that have other spark plug sponsors but run champions in the race, don't tell their sponsors though.. For a street plug, I don't know but some hotter champion race plugs might be the ticket. I don't know what that would be in your application, but I am running 55's or 57's in my yates heads. Scott
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