I can't remember where I got my copy of the manual. It is for 69 Firebirds and over 400 pages.

I wonder if the crossed wires are that way due to the order they are routed from the distributor? The plug wire routing is different for A/C and non A/C cars, but I'm not sure how. The Ames and PY catalogs sell different wire retainer/separator sets for A/C and non A/C, and 67 is different from 68-69.