I don't think it's available. Here's some info I saved from a few years ago:
---------------
Subject: Re vacuum hose
The hose from the vacuum block on top of the throttle body to the pvc valve
is no longer available Part # 10055808 is a perfect replacement you have to
just cut it to size. Zak helped me out on this a couple years back
----------------
I found a hose that can be used for the PCV line, its a 3/8" hose with a 90* in it with plenty of excess length for trimming:
Dayco Molded Heater Hose # 87000
-----------------
Hope that helps
John