[unicoder]

If it runs on starter fluid, then it's a good chance that the issue is fuel related.

Autozone rents a set of NOID Lights you can hook up to your injector plugs to ensure they are firing correctly, if they are then it could be a fuel pressure issue.

Remember when you took the intake manifold off, you had to disconnect your fuel feed and return lines, and your fuel pressure regulator vacuum lines, and i think a harness ground as well, that grounds on the right side of the intake manifold towards the front of the engine. Make sure all of those are hooked up correctly to ensure fuel pressure is getting set and the injectors are indeed firing