PCV issues?/hesitation

I have a 1965 Dodge Dart slant 6 with Rochester 2 barrel carb.
I'm trying to sort out the PCV system.
I suspect that this engine has been reconfigured and is not OEM
There is a PCV valve in the valve cover, which also has a vented oil fill cap.
There is a hose from the PCV valve to the base of the carb, however, disconnecting the hose with the engine running has no effect.
Upon removing the carb, I see the hole in the base of the carb for PCV but no matching hole in the intake manifold.
My reason for researching this is that the car hesitates when starting from a stop and stalls when you nail it in the road. It idles fine but the idle adjust screw has no effect, even screwed all the way in.
I thought that I was fixing this by replacing the carb with a new one. Float level is correct
I also have a 1963 440 and this carb works great on it without hesitation.
Distributor is new with new vacuum advance and the mechanical advance works as it should. Ignition timing is as per specs.
I suspect that the issue is related to the PCV system but I am at a loss.
Any help guys?