Took these out of my truck engine last night.
I've been playing with the timing the last little bit, and I got it right now.
The carbs were rebuilt recently (by yours truly) and I put on a new O2 sensor (damn computer controlled carb).
Looking at the plug, one side looks mint while the other side looks slightly used.
Is this a sign of a potential problem? (poor air/fuel mixing in the chambers?)
ALL 4 ARE ALIKE !!
These plugs are platinum tipped and were installed 3 months ago.
The truck is used everyday and exhibits no signs of any problems.