That is tru, but on the same hand, you are really comparing apples to oranges, and although the K20A and K20A2 have more horsepower potential given the proper tunning, it is a much more dififcult platform to work with. In addition, you're also starting with higher compression, and more displacement. It's a more developed motor, with a more complex management system, and realistically, we'll see how it turns out, but in the mean time, there hasn't been a great deal of success with that motor, even Toda has had some initial problems with the fact that the valves were pressed into the retainers, rather than using keepers, and required a custom valve train, even for the spec-A cam.
It seems to be a very delicate system that will require a lot of finess. I think eventually it'll get worked out, but I think we've got a while...and it will never replace the B-series.
Later,
Aj