You could try http://www.ezwiring.com/ they do pre wired fuse blocks with GM.connectors. They also mark everything every 5" so it's EZ!
I paid $185 for peace of mind! wink


1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.