318 Stalling Problems HELP!

So I found the new pump cup in the parts bag from when I rebuilt the carb. Apparently I didn't change it out... doh. Put the new one on and just manually moving it up and down it will pump air (since the bowl is dry) which it never did before. Fingers crossed pishta hit it on the head. We'll see. I have to run and get some vacuum hose and then reinstall and try.