Spray Nine is what I've been using for years on the wires.....just spray onto a cloth, wipe, and my MSD wires look brand new. It's also great for using on aluminum, UNPOLISHED manifolds. Spray it on there, scrub with a toothbrush then wipe away. Amazing on cast aluminum. Spray Nine doesn't leave the wires greasy or wet. Great stuff.
Bruce '87 Grand National