2.02 or 2.055 valve?

2.02's should be plenty. I have 2.055's, and think that I probably could have achieved close to the same results with 2.02's, possibly made the power at lower RPM's than I am. They were supposed to be 2.02's, but somebody screwed up and put in 2.055's. I think with the bigger valves, there would be more shrouding, which would negate the added flow. Also, you lose velocity with the bigger valves. I'm no expert by a long shot, these are just my thoughts.