I was already backing away from the flow bench. What sensor would you say are used on the dyno. A high-speed recording manometer? Microphones?
I did this to illustrate the end-cuts I proposed. The collector would have three tabs. Convergent angle is not represented. This is thirds of a Christmas wrapping core, not what you were thinking.
What is the relationship between scavenging and anti-reversion. It seems they are at cross purposes.