Here is a picture of what I am talking about. This is a view of the outside of the carb.
[IMG]http://i4.photobucket.com/albums/y146/tarponeer/54%20Chevy/IMG_1117_zps8d542c61.jpg[/IMG]
You can see the ball. It looks like a slotted screw but that is a dent that I made with a flat head screw driver trying to pop it into the carb to replace it. It didn't budge. I decided to leave it until I could do more research.