Sorry for the delay in response been getting ready for the trip to the academy.
Yes it has a small amount of work but nothing big. No Blower or such. Pushing on the dyno correct to flywheel 455-460 H.P. depending on the run.
the 130 ++ figure is for the road course. I have had it to 157 mph before. Yes the limiter is removed as they come with a 155 mph limiter to keep idiots from over running the tires max speed. It can do more but then the tires become a concern.
Sebring is really a great track as the imperfections of the different types of surface give it a character the perfect surface super courses do not have.
The wide sweeping curves like #1 and #17 give you turn speeds most road courses do not offer. but the tight flat turns get you into the brakes hard. I mean with 3.7 miles and 17 turns it is a track that has something for everyone. Does not hurt that it is only 15 miles from my front door either!
RJ