And something I noticed, me and @JDMopar were discussing a 273 build, with china magnum castings, and those have a rib cast in the port floor, something I saw Darin Morgan discuss. Has to do with keeping the flow from trying to go to the center of the short turn. Air loves to go straight, the whole trick is managing that
I think you are right. It may work well here. The 1" wide flow of high speed air going through the pinch wants to stay 1" wide going over the short turn. It needs some persuation.