1966 289 with FLOODING Holley Street Avenger

Good Morning, back to work! I recently bought a 66 coupe with a Holley Street Avenger that was idling very high. I'm new to all this, by no means a mechanic, and know next to nothing about carbs. I finally realized the choke was not connected to a good 12V source and the car was always on choke. The car ran fine for about a day and now it floods within minutes of starting. I've pulled the needle valve assembly and hit it with some cleaner, but it was no help. When I say it floods, withing minutes I've got gas coming out of the top of the carb. What could be causing this?