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Discussion Starter · #1 · (Edited)
Colder Heat Range Spark Plugs

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If your plugs are gapped at .028 i dont think you should be haveing Issues.Oh i see what your saying ! Useing colder plugs in general.Maybe so with your tune and running 91
 

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Discussion Starter · #3 ·

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Is it confirmed by data log? If so i would slightly reduce gaps
 
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