No, that matches up with what I see in the shematic from the '64 parts book. I wonder, though -- as I do not have that connector -- if I could just run a single longer hose through the firewall.
It's an odd system, and the oly reason I can think for using such a thing is that the hole chosen in the firewall was too small for the hose needed... I could look at mine to see where it is placed, but be warned my car has so many holes drilled in it, and I've had it so long (17 years) I don't honestly recall what was where when I got it.
YOu could trivially simulate it with a simple piece of white holey plastic tubing. It wouldn't be correct, but it would allow correct retrofit later, and would certainly look more correct than the hose through the hole.