Hey guys, I have recently gotten this camaro running .. After driving it for a while Ive noticed that the outer ceramic of the spark plugs have a green ring around them. This ring is located between the spark plug boot and where the metal part of the plug meets the ceramic. I thought maybe it was from having the timing off and causing to much heat in the heads. Not sure. Problem.. not a problem. Change em.. leave em? not sure.

Oh and the car runs fine, no missing or any sign of a fouled plug.
Any good advise is appreciated.

 

Got copper ends on the plug wires??

 

I dont think it means a thing.

 

they are the accel custom plug wires, so I could route around the headers. dont thing that they were copper.