My 2005 America is carbs of coarse so I do not have to worry bout this.
On the other hand on My Rocket I use TuneECU. You might want to check with any KTM dealers in your area. They use TuneECU.
I am going to look for someone to Dyno it as soon as I finish the mods on it.
If I had a EFI model America or Speedmaster I think I would check out Triumph Twin Power and what they have to offer.