Well I've cranked my stockers up to 18 pounds not too long ago and it would've been the most violent thing I've ever driven....took some mates with and they too were very impressed! It was very, very troquey down low and pull all the way thru till redline in 1st and 2nd....but in the remaining gears they weren't too crash hot.
The only thing I've been wondering about is how yours fair down the straight in the higher gears?