Try removing the fuel line from the tank to the fuel pump and place a gallon gas can with a piece of fuel line from the pump into the gas can. It would be a good idea to have fire extinguisher nearby. See if the engine will crank up and run off the gas in the can instead of the gas tank. If it does, then you have solved part of your problem, that being a clogged fuel line or gas tank.
If you can get it running, find a manifold vacuum source and hook up a vacuum gauge. They don't cost much and can tell you a lot about what's going on with the engine. Here's a site that explains how to read the gauge.
http://www.therangerstation.com/Magazine/Summer2003/VacuumLeaks.htm
You can also check your timing while the engine is running and using your vacuum gauge, set the idle fuel mix. The gauge will also reveal vacuum leaks and other problems. A dwell tachometer is a good tool and none of this stuff costs a whole lot. Let's see if you can get it running and keep it running. Obviously you cannot drive the car with using this method, but if you can get her running and idling nicely, then you know that the tank needs to come off and be properly cleaned and perhaps sealed inside. There is a flex line coming off the tank to the steel fuel line. These become rotted and will seep some. They also will not hold vacuum and make it really hard for the fuel pump to suck gas out of the tank. I can't tell how many times I've read of guys talking about electric fuel pumps due to this problem. If that line is old, replace it. It's a one a couple bucks and easy to do.