The quality of the carb is suspect from the get go. I've had to replace the threads in the main body for the fuel bowls and the locating dowels for the secondard metering block fell off the casting with the gasket.
The idle jet and air bleeds are fixed, so dont confuse my inserted restrictions with adjustable factory stuff.
None of us were confusing anything. We all know this carb as well as the 'old school' carbs come with pressed in restrictions. On the newer ones they all need to be checked right out of the box.