A/C has nothing to do with fuel lines.
Just to confuse the topic further, early 72 cars will have the funky trunk tube, as opposed to the later 4-in, 1-out vapor deal. The 5/16 & 1/4 lines going front-to-back are the same, I believe, for all 72-4's.
Excellent pics guys. I'm going to need them when I run my new lines soon.