[Caprimaniac]

Running 48 IDF's, 40,5mm chokes and 2.02 valves on Vic Jr heads. No issues whatsoever.

Yes, size on valves and aperture diameter is of concern regarding crab/ choke size. But, would you see a difference in Hp @8000 rpm on these heads VS a set of AFR185's or 165's? In case so- which direction would the change go?

Another matter is low and middle RPM torque/ Hp differences. I would predict that the drop in performence because too large valve appertures would be seen here because of less speed and hence less mixing and droplets forming.