Something I norticed when l was looking my mate's deteriorated 68z, was that his loom was hanging down aith an clip offset, and it was also pointing rearward..
I've just had a better look at my FAIM (UPC12-A5), and sure enough, an offset clip is specified here. It also shows the manual to point rearward for it's installation into a hole between the two J-clips for the shroud support.
Looks like I made a mistake here.. I made that loom.
Restores my faith in GM, but not so sure about me!
So, I wonder what the two holes that line up in the latch and support are for..