Port-o-sonic or Holley Street Dominator?

I give it this, way to much plenum.

When they did research on plenum sizes to dampen reversion they found that the ideal size was 8 x 1 cylinder volume.

Its some where in the "scientific design of exhaust and intake systems. By Philip H Smith and John C Morrison.

Look at the difference between what could be considered the smallest shittest single plane to the best dual plane currently on the market.

https://www.motortrend.com/uploads/...formance_parts_install.jpg?fit=around|875:492

The irony is at maximum airflow demand @ 5600 RPM there's only 17 HP between them.