Try this... http://personal.utulsa.edu/~nathan-b...fsm/index.html
If it starts with starting fluid, you probably have a plugged up cold start valve. It's the passenger side of the manifold. Pull it off and have someone try to start it with the coil wire disconnected. Look for a strong stream (sound like a prostate commercial...).
Two more culprits of bad idle are the air flow meter in the air filter box or the throttle position sensor. Both could be corroded or in the case of the AFM outright stuck shut.