They tend to gain about 10 HP after break in, so as long as the figures posted aren't close enough to go over the limit there should be no problems. As far as tonight it's just an exhibition to get used to racing everybody, and challenge how long you can make your tires last and not damage your car.
It started at 389 after oil change and all mods. So, it should top out at around 399-400, which would be 0.45.