HELP rebuild my carter or buy new eddie ?????? 340

funny how carbs are
two cars that can be twins and they will like different carbs seen it to many times one like a holley one likes a demon some like stock i just dont get how some one who can tune a carb can have a hand full of a time with some set ups like i said seen it bunch of times

well as of now like i said the flapper is out of the manifold
when i would start the car no matter how i tryed to set the choke it never worked
car would fire up run for a few then start to bog out like fouling plugs and start to die so i would have to self choke it with my foot till it got a littel heat in it
so i have one answer saying the choke will still work with flapper gone any one else??