2002 WS6 Specs and Performance ?'s

[KiD WiCKeD]

Can anybody point me to a site or give me some stock specs on my car? I need to know the following:

Cam Specs - Lift and Lobe Separation
Rocker Arm Ratio
Valve Specs - Stem Length and Diameter and Head Diameter
Valve Spring Diameter and Pressures
Head Specs - Runner Sizes and Combustion Chamber
Main Caps, are they 4-bolt?

Also I had a few performance questions, Is an aftermarket oil pump necessary? It has quite a bit of oil pressure as it is. How much power can i get from a 25% Underdrive Balancer? Is it a good idea or will it escalate engine harmonics? What RPM are the stock coils good to? How far on the engine should I go with mods before changing over to MSD? Thanks for the help guys.

[Y2KPewterSS]

Check the stickies up top.