even the very smallest of Q-jets were 750cfm and these came on everyday 327's...the gen II 795cfm unit is better unit...Either unit will have better off idle throttle responce due to the smaller primaries.....

I have said this before....You really canot over carb and engine, The engine will only take what it needs, due to the vacuum pulling thru the carb...derminded by its displacement...

The engine does not know what carb it has on it nor does it care...It does care if it is set right for it to use!