Qwenzel is right. In addition, the 270 degree engines used in the America are the same starting place that the Triumph Bonneville Performance AMA Pro Flat Track team uses on their factory race bikes... so yes those engines have a lot of potential (100+ HP and 76+ ft. lbs of torque)... only limited by time and money! There are a handful of things that a tinkerer can do to improve the factory performance: open up the air intake, open up the exhaust, remove pollution control, upgrade suspension, etc. These are all fairly simple bolt on mods that a handy person can accomplish.