Matt-

Can you explain how having 1 throttle per cyl makes the airflow even over 1 throttle per engine?
No, becuase thats impossible, equal airflow if purely down to inlet design.
Infact my own car i habe gone from 6 throttles to a single one mainly as the 6 throttle inlet didnt have very good equal airflow...

Fuel fuel being different per cyl is down to having managment capable of that, not how many throttles you got.