edelbrock carburetor flooding like crazy....

One great quick "try" was already posted. If you have a rubber line, carefully pinch it off, as with small pieces of wood and a clamp or vise grips. This will stop the fuel supply to the carb

Get the engine running, and run the engine for 10-15 seconds to empty the carb somewhat.

Unclamp the line, and the sudden surge of fuel MAY clear the debri out of the needle and seat

Go to the Edlebrock site. You can download the manuals for those carbs. Floats work exactly like a "toilet tank." Any little tiny dirt or debri gets in the needle and seat, and it will leak past

What are you running for a fuel pump and how much pressure?