No bike, but I do play with this:
Honda CBR600-F4, RWD, 380lbs dry, custom intake/exhaust & EFI, MoTec engine management. Frame, suspension & brakes all custom. For its SCCA class it must have a 20mm flow restrictor in front of the throttle, which limits the output to about 68hp and 42ft-lbs (peak). Very wide & flat torque curve, on purpose, because it is meant to autocross. Few courses require more than one or two shifts per lap. The thrust curve would make your eyes pop.
Not the most spectacular numbers power-wise, but it is overall 10lbs lighter than the bike it came from. 0-70mph (yes, 70mph, not 60) in 3.28sec, 60-0 in ~85 feet, recorded 1.4Gs on skidpad. It's a wild ride.