Engine stumbles on startup

[ArtJ]

I have a late model A4 in my 1970 Tartan 34

It has been running great all season. I installed a new carb in the
spring. I have electric fuel pump. Igniter elect ignition as well as
protective dropping resistor with coil.

Yesterday, the engine started perfectly a ran for a couple of minutes
then started to stumble and died. I attempted to restart to no
avail. I tehn noticed the smell of gas and checked the throat of the
carb and it had gas dripping out of it. I also noticed gas and gas stains
in the bilge. I cleaned all of it up. Looked at the choke to see if
operating properly believe it is but could not easily look in the
barrel.
I may have 2 separate issues, can excessive gas cause flooding and a shutdown? I noticed elsewhere that someone had to replace fuel shutoff
due to a starting problem. I thought that the draft of the carb
precluded flooding? or could the choke being on cause a excess of
fuel to drip out stuck float? leaking main fuel shutoff?
the tank height causes gravity flow of fuel on the Tartan 34

Do I have 2 problems?

Comments Appreciated

Art