Actually I thought I'd take more heat from you guys over that carb comment. Give it a little more time I guess.
I know efi has the potential to beat a carb, I just think we’re still waiting on a management system to make it happen. I don't want to know how much it would cost to replace my carb with an equivalent efi system, I doubt one exists anyway, so I still believe the carb is the way to go for raw HP.
I’m bracing for the abuse to follow, no foul language please...

Autozen: Help me out here if I’m wrong, but Lambda means a typical closed loop system correct? From my semi limited knowledge, efi cannot make good full throttle power in closed loop. And I think it may even overheat the ex valves if you try it (educated guess). From what I understand, the O2 sensor cannot accurately read the mix needed for full throttle, so it goes into “open loop” mode. Open loop is programmed from the factory to dump X amount of fuel into the motor, and like a carb, this mix is probably not correct.