Quick fuel carb fuel pressure too high? Rich idle...

I pulled the metering block. It looks exactly like the pic here which is a bare quick fuel billet metering block. So it looks like I would need to tap the hole on the bottom in order to move the idle feed Restrictor. Is my schematic correct below. I believe so as the old Holley carb has the restrictor (permanent) in that position (the bottom holes). Wish they would have tapped it at the factory....