I don’t know how your particular carb is set up, but the one in the link, that i posted the pics of the baseplate of....... that carb doesn’t have the constant idle discharge ports.

The guy working on the one in the second link didn’t have pics, but commented how his carb didn’t have them either.

Also, the FSM diagram of the secondary idle circuit air bleed system doesn’t coincide with how it’s described to be routed in the first link.
Instead of being directed into the secondary metering plate, it goes straight to the bottom, into the baseplate....... and the author of the thread describes and has pics of how he re-routed that part of the circuit.

Are they all like that? Who knows.

You have two of those carbs, right?
Maybe you could see if yours is like the one in the FSM, of the one in the link.

As seen here...... no constant idle discharge port: