If we have throttle body and carb, having same inlet diameter,Most on here are running carbs and the carbs can't be dialed in perfectly without a load of faffing. Most have EFI now but the carb bikes make more power..... Even with the fueling off a touch. The EFI is better for mpg etc because the fueling can be controlled better but carbs like FCR39's are very adjustable too and can be dialed in much closer than the stock carbs.
and same CFM-values, we get exactly same max.hp reading out of it,
difference being at on FI bike you have fueling correct over the whole rev-range. And better mpg. FI might even have slightly better reading due to no-dripping of fuel on the intake-side walls when you can electronically control the point when fuel is injected.
That being said, im still a carb-man, in cars too. Theyre fascinating inventions.