carb/fuel issue 289 2 barrel

Hello, I am pretty new to old stangs and I know very little about carb setups. My 68/289/auto has been running pretty well until this morning. I went out for a quick ride around the block and it died about 3 times. I was able to get it home and it would start and die right out. I tested the fuel pump(it's fine) and I replaced my fuel filter and blew out the lines. Pump is pumping plenty of fuel. The car will run if I pour gas in the carb, then it dies out after a minute or so. I can rev the engine a bit and see gas going in out of the circle looking things in the carb, then the gas goes away and the car dies. Any ideas? Do I need a new/rebuilt carb? Is there something simple I can check? I already took the carb off and sprayed it with carb cleaner and checked the small filter I have going into the carb. Some rust material did come out. Help! Stock carb BTW.

Thanks,
Ross

Well I went ahead and took the top of the carb off to clean the "bowl," there was a ton of brown stuff in there!(rust?) I blasted it all out with some carb cleaner and put a new inlet filter on. Fired right up and is running pretty good. Has a little stumble just off idle, but it had that before. Hopefully it will keep going until I can upgrade to a decent aluminum intake and a 4 barrel. Thanks for the help!!

Ross