aleborjas
Member
hi, With low oct fuel like 91 a colder plug on a N/A car will let it take more timing? because a N/A car with 10.5 CR cams, heads, all bolt on's does not take more than 24°-25° of timing after that it nocks is using right know HT1 plugs if i use HT0 would it help? even is a little on the rich side (12.5 WOT) to see if that helps but no i used before 12.8 A/F
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