Story, when i bought my bike MC18 R5K i was told that the bike made 67RWHP but no dyno-sheet to back it up.. more seat of pants dyno i think. The engine due to a rusty crank in shipping had been swapped for a MC21SP engine.
I was also told it was de-restricted with a race tuned computer.
At the time the bike felt fast, and to be honest i just wanted it and had no idea what i was looking at or looking for.
Now i've realised the jets are all stock, the exhaust stock except for silencers (cheap china crap) stock un-modded air box.
SP engine i don't know (how can i tell?), but TA22B (MC21) Carbs. This seems strange on a "race tuned" bike.
Out of curiosity i thought id check the computer as its just a PGM II to see if the "wire splice" mod had been performed and ..NO!
So i'm thinking damn liar, but hey extra ponies still available i'm happy. 
Then when i go to re-fit the computer its got "Racing" written on the back. Is it possible, Can these be modified / Re-mapped ?
I've searched but haven't found anything on the forums about this regarding these computers but keen to chase some confirmation before i run it with the wire splice.
Cheers
Lee