PCV issues?/hesitation

If the carb is calibrated for a PCV, and you install it in such a way that the PCV is not able to function, then
in order for the engine to idle, the speed screw will need to be cranked quite a bit higher, for the engine to get the missing PCV air.
Of course cranking in the speed-screw, will run the throttle blade up the transfer slot, making the engine idle rich and
reducing the vacuum signal to the mixture screws...... which, if the throttle valve is quite far outta sync, will then "do nothing".
Therefore; fixing the PCV is the first step in returning your engine to normal.
AS to the hesitation, IDK. But Ima thinking, with the throttle open so far, the accelerator pump diaphragm is already quite far down on it's stroke, and maybe it just hasn't got enough capacity left.
Furthermore, again with the throttle blade so far up the transfer slot, I suppose, part of the slot is now passing air at idle, which would reduce the signal, and when you step on it, the T-slot may take a bit of time to come back on line.

Course who knows were the timing is at or how tight the valves are lashed............