Pretty good right up.
There is also BenBB's faq that's been around for a long time here http://www.dfn.com/benkaren/ and some other good tuning info to include a spreadsheet for figuring gearing, electrical, plug chops, etc...
MX banshee, with stock cylinders some of the people on here can at least get someone within a couple of jet sizes with basic mods such as pipes and filter mods. I don't give specific numbers because mine wasn't stock long enough.
Where are you located anyway.