Okay then, it sounds like the choke is not opening as designed. When the engine starts, there is usually some sort of vacuum operated “choke pull-off” device. Your choke seems to staying closed, shut tight, which will quickly flood the engine…
You should know that your car is cursed with one of the most complex carburetors ever made…Carefully remove the air cleaner, the entire housing, and take a look at what you are dealing with. Does the carb have 20 or so spaghetti-like vacuum lines connected to a control unit mounted on the firewall? This is as far as most mechanics get…Good Luck…Sometimes you can rig a hand choke…