That was me. I've gone farther than just derestricting mine. Reband header, Ramair filter, PCV and some dyno time. Got 143hp and 148ftlb and quiet it is absolutely not.
A 30 dollar cable and Wayne Tripps tune will get you about 30hp from where you are now. Probably up to 113ish area in hp. Pretty good bang for the buck.
The next 30hp will cost ya quite a bit more and the 30 after that gets really pricey.

Come to Maggie Valley in June and one of the resident gurus is always ready to help a brother out. (Or I can do it)