----- Original Message -----
> The "electrode" color doesn't matter .. it will usually be "light"
> ........ the porcelain body is what you want to look at.
So after you make a change to the fuel/air mixture, how many miles do you
need to run before the plugs will give you an accurate reading? Or do you
need to install a new set of plugs and then run how many miles?
Henry
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