After trying to do some work on my harness and finding the wires difficult to strip and fused to the insulation I decided to just upgrade to a new harness,
I found this harness from speedway http://www.speedwaymotors.com/Speedway- ... 42872.html and it looks likes its made for gm cars..
Seems reasonably priced and pretty well laid out.. reviews are very good also.
Al