ok i know theres a difference in 71 72 v8 air cleaner...i remember reading it but i cant find the link?????
I think the 72 is smaller diameter and a little taller. The thread has pics of the 71. Here is a 72...
I like the 71 better. Something about it looking lower and smoother. I don't know why Ford put those indents in the top part of the 72 unit. Heck, the snorkle is even better looking on the 71.