Yeah i rebuilt the carbs cleaned the bowl and jets. And yeah im running an old fuel filter. I should probably change that. And clean my gas tank. Its weird cuz if i put gas into the carbs itll run until the gas i put in is all burnt up.Are the carbs clean? I have the same bike as you. Mine would do the same thing, and the carbs were completely gunked up. I didn't have to totally rebuild them, just take the float bowl off, and the brass jets and a can of carb cleaner. My bet is that those passages are clogged.
Are you running a fuel filter? I would run one no matter what due to the age of the bike and the possibility of rust in the tank.