Is More Flow Better, Is The Smallest Intake Port That Flows The Most The Best

Your talking over my pay grade :) but I'll take a shot
Does a more efficient port improve cylinder fill
I would say generally yes
on intake valve closing?
Have no idea, what's the significance ?
Does a bigger valve and bigger runner increase reversion and does that hinder cylinder fill................
bigger than optimal ?

Say runner/port opening is optimal size for target hp for the displacement rpm, since valve is the main restriction wouldn't enlarging the valve and opening the bowl to closer match the runner/port opening be more ideal ?