Okay on my mini-me turbo i just pulled the plugs cuz i got 1º colder plugs and when i pulled out the stock NGK V-Powers... minus the black on the first 1 - 2 threads on the plug, you could NOT even tell my plugs were used.... to my knowlege thats like a damn near perfect mixture.. right??

i mean i touched them with my hands and it made them more dirty... thats how clean they were... let me know! for what i know is white is too lean and black is too rich.. so what is brand new after 2 months of driving??

 

Wow, that's pretty good. I would still use something else to test it versus the plugs, like maybe a wideband. Are u using water injection?

 

no water injection... just my own guesstimating on the V-AFC and my shitty A/F gauge!!!!