OK we know the 90-91 have a dual cups.
The 92 & 93 a single cup and a hose going to the cup.
And the 94 & 95 have a single cup (but no hose? right)
The ? is what is the hose on the 92-93 for?
BTW no stock in at Rock Auto and all the other catalog houses on 92-96 MC's.
Even used are hard to find but I did have luck with
http://www.justcorvettes.com/