No worries here. I just raced my first autocross today, awesome fun. Biggest problem was trying to stay hooked up, my car will break traction in 3rd gear even with a Wavetrack and pretty gummy tires!
Honestly 178/285 at that dyno was pretty disappointing, but it is what it is. It was enough to take the trophy for "Highest Horsepower" that day. Not a number to brag with here though, so I won't. I am thinking I would be well north of 200HP on most other dynos.
I have not had it to a 1/4 mile track yet but am interested in finding an opportunity. Will not hesitate to post when I do.
You have a lighter car, but I would line up with you anytime.
It really is a nice curve you posted.