If you have a '72 like me, it is probably what I am dealing with too. Whoever did your car, did mine too. You are missing the bowl vent nipple. Both that hose and the bowl vent nipple go to a carbon canister which has three nipples on it which is mounted on the inner fender. And btw, your vacuum advance is routed incorrectly. that nipple on the passenger side is supposed to run to the advance pod. Im in the same boat as you buddy.
And yes, I realize I said nipple quite a few times...:toothy10: