nope only 257 at the wheels. Done dyno twice as I too cannot believe but i have since understood this number game. Also Nothing was done to the engine, so i dont expect crazy figures.
Apparently there is an adjustment factor and something about dyno packs. Some dynos give really optimistic figures. Like 420hp at the flywheel that kind of numbers.
I have a mate dyno-ed at 350 or 380 or something like this but when he went for the same dyno as mine, his figure was maybe 260-270 at the wheels.
look at this guy who was my inspiration:
http://www.driftsouth.org.nz/forum/viewtopic.php?t=1123
only 275 at the wheels. (and is after the rebuilt - go down where the orange car is on the dyno machine, its stated there).
But power is only a number at the moment, not very very concerned about it until I learn how to make full use of it. Its not an easy car to control.
this hp achieved at 1.4-1.5 boost.