Cam Specs

[Long Island RT]

Can someone enlighten me (or show me a thread and/or article that does) about cam specs?
LSA, Duration, Lift @ 0.05...etc.  I understand what each term means - But how does that effect engine performance? 
For instance, I remember reading that 110-112 LSA helps "bleed" off compression and may help with a pinging on lower octane - but how?  And why would a smaller LSA be more responsive?

Thanks for any insight.

[frederick]

Here is a good article.
http://www.compcams.com/Community/Articles/Details.asp?ID=-2026144213

Happy reading.

F.

[troy.70R/T]

Good article, thanks for posting it.