Along the lines of your guy's comment;one point Shrinker made is that a well designed e-bleed system allows more latitude for variations in engines than a solid fuel carb (he should know he made such carbs for his customers).
If you're up for another way of approaching carburetion
.. think of an engine as a machine to raise the energy level of a fuel to as high as possible prior to initiating controlled combustion. That sentence really needs thinking about. If you approach an engine that way it opens a whole new way of thinking...
A little teaser from
"Emulsion" posted at MSV It sounds very brainy, but just being aware of it I found is helpful.