just my two cents,
i have been building race engines for years, lots of flow bench work, and dyno testing. just a little fyi, so as not to think i am a shade tree mech. lol
this type of porting configuration has been tried for many years, in all aspects of the intake and exhaust systems. the idea was to introduce a swirl effect after the opening of the intake valve on for stroke style engines. for the cost, and the amount of work there are no significant gains to power, kind of like the boost bottle theory on two stroke engines. the best way do debunk the idea is, on a banshee for example there is a split intake plentum , followed by port windows in the cylinder. when you try to introduce this swirl into that configuration, when it hits these points in the intake system, any pattern that it might have been attained during the intake charge would be disrupted by the obsticals in the opening. this also would hold true in a single cylinder application. hense, the fuel that is atomizied and suspended in the air would no longer follow a clean path.
the best thing that can be done to any engine is quality port work, and a intake and exhaust system that will complement the cylinder head, compression, and ridding type for each person.