Ported Victor W2

Or maybe (in actual fact) the plenum volume of each intake was developed for the particular application the manifold was being designed for. Maybe they aren’t as stupid as you think they are. Plenum volume can’t be sorted out on a dyno (there is one exception to that rule) and needs to be worked out in the car.
I took notice to the small block Torquer series. There is a big difference in the plenums and runners. Very different intakes. I never had the first torquer but owned the torquer II - 340. Big plenum, short curved runners vs the first torquer with the smaller plenum and straighter runners. I just got my first Victor from a member here.