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Spark plug Recommendations for nitrous

How big a shot are you planning on spraying? I am assuming <100? Run a NGKBR6EF (part# NGK 3177) gapped at .035 it is the same as a TR6 but with a non-projected tip (better for nitrous). The IT-20 from Denso is also 1 step colder but it is a projected tip (bad for nitrous).
 
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