Well, it got dark enough to check for ignition spark. It's got spark out the wazoo.

I tracked down the loose vacuum line and still can't find where it goes to. The unit it goes to is mounted on the side of the fuel distributor. Standing at the front of the car this unit is forward of the fuel distributor with one pipe fitting to the top of the distributor and another out the side toward the fender. I can see discoloration on the hose from a rubber vacuum fitting but can't find anything it would attach to.