'68 Carter AVS part needed

I am reworking a 68 Carb. as stated.
The small tube poking out the front in the base is missing.
I believe it is for the hose connecting to the PVC valve.
Anyone have one or know where I might find one?
Thanx.

Part number 17-100

On page two

WOW,
Thank-You.
Walker part.
I should be able to get it over the counter at the local O'Reillys.
That's why I Dig this site.