Since I noticed the link in Green Dragons post is dead, I did a little snooping.
I hope any of this will eventually lead to something useful to you...
http://www.thehighspeedlab.com/index.html
Check out all the offered services for Eaton blowers here...
http://www.thehighspeedlab.com/catalog.htm
Here's a "ballpark" HP calculator that's kinda fun to play with...:yesgray:
http://www.superchargersonline.com/hp_calculator.asp
Start at 215 crank HP, Plug in 20 lb boost, 108 octane & a 3 core intercooler, then let your mind wander...:smilewink