I put some old 1.88, 1.60 360 valves in a set with some port work and got 240 cfm out of them. My opinion would be I don't know how you could get a 2.02 or a 2.05 valve in there and shape the short turn right. It would be pushed back so far that I would be afraid of hitting water. That's moving the seat back .135 into the short turn. Second with all that valve curtain area the air speed at the pinch I would think would be crazy high. The 1.88 1.60 seem to go smoothly.I'll dig up some more info later.