1968 340 AVS 4425S carb replacement

So a divorce choke would not just slide on to the new carb? I am trying to get something that would more or less be a plug and play carb. I am not sure, but don't these carbs also need an adapter for the Mopar linkage?

We have rebuilt the carb already cleaned out everything and it helped the running condition, but has returned back to acting like blower surge at idle and poor performance when trying to get on it.