With a new stereo, extra gauges, and the fact that it's 38 years old, I was considering re-wiring my 66 with a kit from Painless Wiring. The kit is reasonable in price and just not having to deal with off and on problems anymore seems to be well worth it. They say that there are detailed instructions, but then again, this kit is generic and not specifically made for this car (or any Chevelle for that matter). Has anyone had experience doing this before? Any things to look out for and what you would recommend? Thanks!!!