Kaiser2boy

I rebuilt my ETW1 because it gasped upon acceleration. Found it had the wrong gasket at base the blocked the vacuum port. And the bolts were only finger tight.
The inside of the carb was very clean, I mean very clean no gunk of any kind. I found that odd for a 1953 engine.

Tracing the accelerator pump fuel path from the plunger to the jet I found a drilled port at the rear of the jet where the fuel comes up from the pump.This port is vented to the air crleaner via the float bowl vent.
This drilled port is located inside the carb just in front of the brass cap that acsesses the jet for service.
If I press the plunger down gas squirts up and out that port and also some comes out the accelerator jet into the venturi down tube.
My question to anyone out there that knows Carter BB carbs is , should that port be pluged so all the gas squirts out the jet or is the port a vacuum breaker to stop the carb from constantly drawing fuel up and out the accelerator jet?
As it stands now the truck runs but is an ill natured Camel. I pluged the port at thr time of rebuild. It cleaned up the gaspping problem but it seems to have traded the gasping for strange idle surging and a real rough spot at around 30 mph.