Spark Plugs
#3
I suggest using the stock NGK BUR-7EQP (leading) and BUR-9EQP (trailing) plugs. All 9s will only make your cold idle worse on a stock car. These NGKs have proven themselves to be the best for your application, so I don't suggest trying other brands or plug styles.
-Max
-Max
#4
www.silverbulletrx7.com
I too suggest that you stick with the stock NGK plugs. Although other plugs might be better like HKS they probably aren't worth the extra money especially on a stock car. However if you would like more info I have been conducting long term testing on the various plugs available for our cars. The current results can be found on my site.
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HalifaxFD
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The1Sun
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