Air cleaner hose ID...

[Camaroresto]

I found this in a box of misc stuff. Looks like an original BB air cleaner hose. Has yellow GM markings. What big block car would this be correct for? Any ideas?

http://i21.photobucket.com/albums/b299/Camaroresto/gmhose002.jpg

[KevinW]

Looks similar to the 70 chevelle cowl induction connection between the air cleaner base to elbow on the valve cover.