Again I say adding a kit with a small jet wet or dry isnt going to hurt anything. There arent many machine shops that can do motorcycle bottom ends and the ones that can are expensive, and if anyone says just slap a new set of pistons and rods in with no machinging your dumb. Pistons and rods are anywhere from 600 to a 1000, add in machine work thats probably 600. If you going to tear the motor apart might as well port the head 1000 ( depending on quality), cams 500, ARP fasteners who knows, a good EFI system 600-1000, a good nitrous kit 1500 and I could go on. Or he could slap a dry kit on there for 500 bones ( wet kit would be optimum but most bikes dont have the fuel pressure to handle it) and run it for awhile until the motor tanks and then he can just buy another motor for maybe 1000 bucks. Besides Brain has had MANY nitrous cars and if you have forgotten he is also a shop owner that tunes an array of things with spray on them.