While extremely informative, I'm sure some people are a bit confused on what the numbers MEAN, and also what the numbers DON'T tell you.
As GPRacer said in the third post, higher lift generally means more power. The valve is actually open more, so the engine breathes better. But it's not always possible to increase lift without increasing duration.
As a general rule, more duration will have more top-end power in higher revs, but less low-end power.
Duncan Racing 340PV, +2 A-arms, +4 LSR axle, and a host of other goodies.