as I hear it, VTEC was originally designed for fuel economy.... one of the byproducts of it was more power also. More efficent engine = less gas and more power.
Kinda like how Teflon was discovered... by accident. They were trying to accomplish something else and ended up with more than they thought they would. A good thing.
So yes, VTEC does add more power... but it's original idea and design was just to make the engine more fuel efficent at higher RPMs.
But that's just what I heard...
I have no proof.
h:
Why is boost in VTEC bad? Or not as good as when not in VTEC?