3310-2 seconderys flooding

I hope someone will help befor i toss this pos carb.IT has been rebuilt by me first time ever in my 36 years having this problim.The seconders are flooding when i shut it down and it is not pouring out the boosters it looks like it at the butterflies as said its a 3310-2 VS carb,when its running look into the throat and all is great but as soon as i shut it off flood city.any thoughts.I am going pull it today and put my trusty 600 back on.The primaries are find. Float level are spot on.:cheers: