Lets play...What spark plug do i need to buy from Napa?

85GTKid

Founding Member
Jun 6, 2001
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16
Oregon
Engine is an 85 HO non roller with edelbrock carb and performer intake. The heads are E7's With a little bit of porting and full o/r exhaust. What autolite or what ever plug do i need for this setup ie brand and number. Thanks.
 
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Exactly what he said. Do not get platinums.

copper = better spark, shorter usage (which is what Autolite 25's are)
platinum = poopier spark, longer usage