dyno numbers
the dts dyno reads slightly lower than most dyno's,partly due to the 4 rollers turning all the time,even when the wheels lift onto the front rollers.
(It is more accurate than others,hey)
This means the numbers dont change for the better as some dyno's do!
Try contacting the workshop that did your dyno and engine work,as the dyno may have been done in 2nd gear because of the rpm versus speed .The dts dyno has a top speed of only 198kmh and in 3rd gear 1.0 :1 ratio it will max out with speed.This looks as to what has happened with you.
If the car feels like a weapon and it is heaps faster then maybe it is 270kw wheels,it sounds like you are confused abit and be causious listening to too many forum experts.
Try the normal approach an go back to the workshop,discuss your concerns and they will help,there the experts.Expecially if it has the power and parts used,it seems normal for a 5.7 with 250,ooo km ? with cam and heads to do this.
As they say some dynos may have had 285kw wheels ?
Also there was a post saying you can do 7000 rpm?,with a std vx manifold
(i don't thinkso?
all the best.