Wanting some experienced opinions on this. I have a 78 Z28 I've had since new. Never really had many issues with wiring and as far as I can remember everything still works (been restoring for the last year). But I have 40 year old wiring. I'm taking this thing down to the bones so is it the smart thing to do to strip all old wiring and rewire with a new Painless harness or something similar?