Originally Posted by Moparrbust

I had those same plugs(but from LET) that I put in my car at 3,000miles when I did my 185 pullies and other mods. As of yesterday I changed them out at 9,300 miles with stock Champion platinums and the car idles SMOOOOOTH now. I was hoping somehow my plugs were bad(but they seemed in good shape) and possibly causing my boost issue.............but changing them fixed nothing except the idle.