Not so fast. Look at the plug on the left. There is noticeably more black carbon on the left plug than on the right the electrodes are clean but the rest of the plug is not. It is in both picture so I don't think it is the light. If the left side is the #1 plug then it could be that you have unburnt fuel due to the misfire and therefore a little fouling, or that you got the misfire due to the fouling.
It doesn't look like enough to cause a misfire so I would choose the former choice.
I would leave it. If it is going bad it will do it again, especially if its a wire.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
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