if they are making 80 to 120 hp then it is far from stock.. I own a dyno and hurt peoples feelings with it on a regular basis.. Figure a twin cam 88ci engine with pipes, intake and a tuner makes on average 65 to 70hp. Thats at the top end, useable is around 50hp.
if your having a hard time keeping up ridding with HD's, look at the way you ride, the bike is more then enough to keep up with and beat a HD.