I was wondering if there was a good technique to clean plug wires. My '60 has a good set on but has gotten dirty and dusty over the years. I would like to put a little shine to them, like even some ArmorAll, but don't want to find out later I've just ruined them. Any suggestions or ideas? I mean, I'll take the necessary precautions, like shutting off the engine before cleaning them with liquid... I'll even maybe take the keys out of the ignition so my wife doesn't drag me to town again like she did that one time. Oh wait, that was yesterday...those frost bumps we're getting now on our roads are pretty hard yet.