Chances are, you have a massive vacuum leak. Listen for a hissing noise if you can get the car to run just above idle speed. There are a lot of vaccuum lines on that enguine, so I would start there. It is even possible that the Intake ruunner pipes leak where they attach to the cylinder heads. One method, THOUGH PROCEED WITH EXTREME CAUTION AND STAY AWAY FROM THE DISTRIBUTOR, to find a vacuum leak is to spray small amounts of carb spray (ideally propane) near connections in the intake system and around the fuel injectors and look for the RPM's to increase. Besides all that, depending on the year and engine, there is an auxillary air valve for idling or an auxillary warm up regulator.
Be patient, take your time doing one thing at a time and you should find the problem. One more thing that enters my mind is that the breakerpoint gap could be way out of adjustment or worn out. Without at least some breaker point gap, I know that these cars won't idle. BE CAREFUL WORKING AROUND THE DISTRIBUTOR AND ITS INTERNAL PARTS. BE CERTAIN THE KEY IS OFF OR YOU COULD GET A SMALL SAMPLE OF THE ELECTRIC CHAIR!!!!!!!!!!!!!!!!!!!!!!! Good luck and I hope that I have helped somewhat