A lot of shaking, and some cruising too.
Took her to some more open roads, got her up to about 65, and things felt pretty good. I definitely need to test out my brake booster though, the brakes are pretty firm, like non-power brakes, but they are functional. I also had to back off my idle speed a lot - I had to really step on the brake to keep it from inching forward at red lights.
I can foresee that a different rear end and tranny are in my future. With the 3-speed FMX and 3.00 gears, I was at pretty high RPMs at 65!