Edelbrock accelerater pump

You had plenty of fuel in the pump area of course?
One little trick I can tell you is to put a small metal shaft (screw, machine bolt, whatever) and tap the weight on top of the ball to be sure the ball is seating.

You can test how it seals by removing the fuel from the carb bowls and fill the pump cavity to see if it leaks down.
Basically the ball is supposed to work as a one way valve and only let fuel in via the hole under the ball.
Otherwise the spring on the pump shaft can be threaded (unscrewed) off the shaft and the new one threaded on.
as long as you dont bend it all up it will work fine.