Changing out header today and looked over the plugs since I had to pull them out. They are NGK TR6 plugs, gapped at .040". They appear to have a slight green tint on the electrode, porcelain is very light gray/whitish.

Am I running a little lean?

 

I think that green tint is from fuel additives. I've always wanted to learn about reading spark plugs! There's a few guys who swear buy it.

They like to take the car on a 1/4 mile run, shut it off immediatly after the finish line, pull the #7 plug, cut off the threads, and study the whole inside insulator part.

 

Doesnt look too lean.

 

Yea, other than the green, they look real good to me.

 

What does the gap portion look like. I just want to see a profile of your gap.

 

Looks like new, no crusties or anything. Will get a pic up shortly.

 

Atleast yours didnt have oil in them!!!

I changed mine when i did my headers and the two rears on the driver side had oil on them.

 

From what I understand the green on them indicates a heathly running car on nitrous. The greenish color is what happens from the nitrous and is a good thing from what I have heard.

 

Hehe, I have run a bottle thru it .

I guess even on little shot there is some evidence. Since I have little experience with nitrous I had no idea that it turned plugs slightly green. Thanks.