92 octane is what we got around here, and some days it works great, but other days i need to run 87, it burns hotter, just beware that running 87 can have detonation problems if you have your bike running lean.
VP 110, just because I can count on the fuel being consistent. I would like to try Ultimate 4, but I don't really relish the idea of jetting this thing because getting to the carb is Oh So Much Fun.
I saw 100 octane @ a Unocal in Laguna Niguel/Aliso Viego (wasnt really paying attention where exactly) just off the I-5. I dunno how many of these stations offer it and it was quite pricy ($4.99/gal I think).