There is no point. The stock/Boss Intake manifold opening is 83MM. Same reason I do not support the 90MM Throttle bodies.
Correct, but it doesnt have a large shaft and blade through the center either. If you do the calculation of the area, a larger throttle body is still beneficial (on a flow bench), and dont forget, the manifold can also be opened slightly. We certainly agree however, the 90mm is a waste!