What spark plug gap do you guys use. I know haynes and all the spark plug manufactorers use .44 but in the manual for my car it says to use .39-.43 Which should I use or is it not a big enough difference to notice?
Is setting it at say 0.39 opposed to 0.43 going to have much of a difference on the plug? Well I guess it is only 0.04 of a difference which is not much....
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