Comes with C-16. No need for race fuel as it runs on 94 octane. Requires tuning by someone with a lot of experience to get it to run? What? Some tuner is going to get dropped a bike that they know nothing about other than it was built by someone that was a little off. Did he drop compression to accommodate the twin turbo? Street legal my ass. Almost impossible to pass safety and completely impossible to insure. What's a basketcase ZRX1200 worth?