plug readings

[sleekcraft76]

how can you fine tune carb jetting with plug readings ? what i mean is their some kind of visual referance to go by, every time i look at a plug its just light brown to light tan . do you look at the porcerlan under the electrode or what?

[OMEGA_BUBBLE_JET]

if they are that color you are okay. If they are covered in white soot too lean and if they are black too rich. I think you're right where you want to be.

[sleekcraft76]

so i take it tou look at the porcerlan under the electrode? is this correct?

[King Kuracz]

Here are a couple links to more info:
reading (http://victorylibrary.com/mopar/plug-read.htm)
pictures (http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html)