I thought the 'Trans Am University' or whatever it was, that appeared for about 6 months only was handy. Although very basic, it showed shaker, air cleaner and general Firebird and TA part comparisons. It answered the majority of the What is this part? questions, if they'd bothered to look for themselves.
I have the 79 and 80 Tech Bulletins somewhere, but it's more for updates and wouldn't have had this page, as mentioned. I'll dig them out if I remember.