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Discussion Starter #1
Today i pulled out the plugs and 2 where a dry black color like too rich and 2 where grey, like leaner.
The 2 black ones had bigger gap, can this be it?
 

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Discussion Starter #3
wes said:
Yes the gap can and will affect that. What was the gap set at on the two different plugs, and why would you run a different gap?
The gap on the black ones was .30 and the others was .25, but i dont know why, since i set the gaps the same way, guess i made some kind of mistake...
 
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