I finally found the problem. After rebuilding the carb, replacing the mixture needle, and replacing the intake manifold gasket I still had the same problems. I just couldn't get the carb to run when I opened the choke plate up. It had to be almost all the way shut to make it run. I stumbled onto a post about the Idle cut-off solenoid. This shuts off the idle jet to keep the engine from dieseling at shut down. However if this solenoid doesn't ever open you won't get any fuel to the idle jet and therefore the engine won't run unless it is fully choked to balance out the air/fuel mixture. I bypassed the green connector and just wired them together and voila...the engine ran again. I don't know if I really had to replace the mixture needle but the carb needed the rebuild and I did have a vacuum leak at the intake manifold. I just thought that I would post this so if others have the same problem they would have another possible solution.