Jim at LA Cycles arguably best in Sydney, he will sort you out.
Not cheap, definitely worth it though.
For example my new bike, straight off the bat made 84/106, 8 hours later it's making 95/114! Not bad for tune only.
As for your sporty, I had one with Hammer cams and skimmed head (tight arse compression bump) and made 87rwhp tuning it myself but wasn't on LA's dyno. His will read a bit lower compared to others but it's just a number at the end of the day and comparing it to what it came in with.
you know you are going to the right shop when even HD dealers bring stuff that's in the "too hard basket" to him :)