Didn't one of Norman Mah's bone stock Syclones put down around 300hp back many years ago? FWIW, Phil (GAST member) put down 311hp and 416tq with an ATR exhaust and 9/11 TC.
I really wish Jordan would have dynoed his teal/grey Ty when it was stock. He went 13.6 (IIRC) back in '99 @ the NATS. For a full-weighted, bone stock, paper air filter, Typhoon to run those times, he had to be exceeding factory rating. I rode with him when it was stock and it felt way faster than any other stock Typhoon (and some lightly modified ones) I've even been in.
Hood