I don't know what kind of Harleys are blowing you away, but ...
a properly tuned and tweaked Savage will eat Sporty 883s and some 1200s all day long. Part of the reason is that a sporty weighs close to 600 pounds and you can get your savage down to about 315.
Check out the threads on carb and exhaust mods:
White spacer, re-jet, air filter mods, desnorkel, drill airbox, muffler mods, like sporty/Dyna muffler, iridium spark plug (a must) etc. There are more advanced things like a custom carb from lancer, Supertrapp or Jardine exhaust, K&N cone air filter and you will be amazed what you'll be blowing away!!
FYI
Ike