H22A1 or H23A1?
I don't understand how you can misconstrue this equation.
Cams have alot to do with the air flow of the motor. Tweaking them and the timing will enduce either better gas mileage or more power.
The bottom end has everything to do with rotational mass, and the head has everything to do with air-flow.
eh you're right apart from stock yea...
And both worse than that of the B-Series?
Yes and yes. There are very few H22/23's that have stayed together, and the cost of the aftermarket internals ie rods and pistons are significantly more costly due to HAVING to sleeve the H series in order to run forged pistons.

The numbers don't lie.
K-Series here I come







