I can't see the pic. With your mods TR6's are not enough if that is what you are still running. I have a set of Denso IT20's in stock when you are done playing with cheap plugs
I just changed to the TR-6 myself last month. If you can believe it, I've been on stock plugs until now. Nothing wrong with JIM that a little humility wouldn't cure. It is virtually impossible to know everything there is to know about Lightnings including why some trucks go faster than others with the same mods etc....................... Guess I just don't take kindly to being called a liar. But that's a story for another day.