Raced with the 750 at Maxton twice, in 2007 and 2009, and at Bonneville in 2007. Of the three events, my best was the '09 Maxton meet, where I ran 114.3. I'd had the motor's upper end rebuilt with a mild road-racing cam, plus I'd changed the front and rear sprockets to give me taller gearing, but otherwise the drive train was bone stock.
Since then, I've had the motor completely rebuilt and bored out to a 970. In addition I threw on CR carbs, replaced the Dyna ignition with a PowerArc optical one, had the gears undercut, etc. I'm taking it to a shop to dyno test it next weekend, and that *should* finally get it dialed in all the way. A new cafe seat and rear sets are on their way soon, too, so I can lay down closer to the tank.
I can't say for sure it'll top 130, but given my experience riding it not tuned all the way, my hunch is it will. That's why I'm so concerned about the frame, tires, etc, being able to handle it. Anyway, hope that helps. Oh, and attached are two pics - one from Bonneville when it was still a 750, and one from the shop late last year after we'd rebuilt it as a 970. And yes, I do plan on racing at Maxton with it in 2011, just not sure which meet, though!
Thanks for all the help, by the way!