Hey Mr. Porter! Thanks for posting the Holley Street Dominator.
(Top pic for those that do not know)
I was trying to do just that.

YO, on a milder cammed, street bound mill, the smaller plenum has an advantage over a larger plenum in throttle response. It is easier to tune the carb. Instead of the runners drawing from a huge plenum first, it can also pull on the carb as well. Since there's less plenum area to draw on. Low rpm operation is easier.

Holley designed the intake this way vs. there strip dominator that has a larger plenum and longer runners. Porters mention of the W2 initial design use is correct. Higher lift, higher rpm. The use of the W2 as cast can still be a very good head. They flow best at high lifts. The low lift suffers a little bit.

I will use my future W2 bowl ported and with a high lift cam. With that street dom intake it will have a snappy response and good upper power. Not a high rpm screamer. Easy, simple, non complicated build.