Yup, I pulled out my driver's side TR55's today...and found that 2 out of 4 were at about .070(and carbon scored pretty bad) or so, and the other 2 were at .055 or so...Put back in the TR6's at .040 and can tell an immediate difference. Now I have to do the passenger side tomorrow afternoon...But I assume that a gap like this can cause some major stumbling issues, right? And that that big of a gap could make those 2 cylinders run rich die to not all the fuel combusting?

 

NGK TR55 (.050 gap) yeah make sure there all gapped the same, if there really bad just put new ones in

 

After 800 miles, 2 of em were dark brown....Carbon deposits...

 

800 miles???? Thats it? You got other issues besides the plugs my man.

 

yeah carbon isnt bad, now black is rich conditions, and white are lean, so your ok

 

Keep in mind I drove for 85 miles on the first tank to get the initial programming...I knew they'd be fouled...I just expected all the same gap...And yes, there have been other issues...

 

Well, it is not quite black, but the white is definetly discolored due to a rich condition...But it is definetly not a lean condition...Not with the popping it does now...And the light show...