Again, are you getting fuel at the carb inlet? Assuming you've drained the fuel lines installing the new pump, it will take a while to get fuel through the lines, if in fact you have fuel in the tank.
Simple stuff first...
With a Quadrajet you can use a 1/4" tip funnel and pour about 1/2 cup of fuel into the fuel bowl through the vent tube at the front of the carb. This is enough to start the car and run several seconds until fuel pulls.
Did you pull your coil wire or distributor harness while working?
Vikki 1969 Goldenrod Yellow / black 400 convertible numbers matching