My books are with my Corvette, and my Corvette is about ninety miles from me, but I think I can help (if I remember the routing correctly).
The hose connects to the vacuum damper at the rear of the intake manifold. It's a plastic, cylindrical (sorta) device with several little tips sticking out from it to which you attach the vacuum lines. I
think that's where it connects. (

It's been a couple of months since I removed mine.)
_ken