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

If his carb has sight plugs, fuel should just drip out when jouncing the fender.

It it has a sight glass, 1/3 to 1/2 up from the bottom is where it should be.

I tend to shade it to the 1/3 level.
Thanks for the clarification.
I have never worked with any of the new carbs just lots of the old Holleys. I remember someone, probably Mr. Gasket, made clear sight glass plugs. No reason for those if the fuel level is supposed to be at the bottom of the threaded holes.