Moi...does not drive a Turkey...but a POS.
I am going to try this soon...since I need to take stuff off to fix a coolant leak....where I'll be installing a 192F thermostat. Will also put in a new float/valve while I'm at it.
If you read what he says...your limit is the float bottoming. This carb has a sight glass in front...last I looked the level ran slightly below the line...so it might not adjust any further down. Doubt if it's going to "dump" fuel at any point...if adjusted too low you simply won't get enough fuel because the valve won't open enough.
Not afraid to try it...just don't want to be taking the top off the carb when I can avoid it...which is why my carb rebuild kit has set in it's box for a few years.