Lean idle. Rich cruise.
Turk,
The book is NOT wrong. Nor are the other books/people that say the same thing, including the Holley book. I do not understand why this is so hard to understand......
The air bleed bleeds off booster signal. If the AB it is increased, more signal is bled off, requiring more RPM [ to create more depression to start pulling fuel ] to start booster flow.
I seem to remember you posting info from Taylor & the info did NOT support your theory.