as stated earlier, here the condition of the new plugs after 3000 miles on them.

My friend is trying to argue that the little nub on the top shouldn't be there. I didn't pay attention before installing them. Someone please prove him wrong. haha

 

Here's my '06 350 plugs after 55k miles. The drivers side bank looks a tad better to me; not a clue though.

 

My minds at ease knowing the cars not running lean. And that nub on top is how the plugs are from factory. Everything's normal