The large black line with the white stripe is for the fuel tank vapor purging. It connects to the throttle body under the air horn. The black rubber nipple at the fuel pressure regulator is the safety overflow line in case the regulator diaphram ruptures. It connects to the breather hose that goes from the valve cover to the top of the air filter. There is a small hole in this hose near the v/c that should connect to the black nipple with a legnth of hard vacuum line. The port on the ignition module reads manifold vacuum. It should connect to the nipple in the #1 runner of the intake manifold.

FWIW, the vacuum line would not keep the ignition module from working. Something else is causing your no start. Put a little gas down the air horn to see if it will run.


edit: I may have been a bit oversimplifying things, the ignition module may very well be causing the no start but not because of the vacuum line. Making sense now?