I have to investigate whay its not running well up to 7000RPM.
You've mentioned earlier that, there may be a throttle imbalance between the cylinders.
That could explain the performance issue.
A vacuum gauge set (with 4 gauges) could help to achieve perfect balance. The throttle
bodies are equipped with "service ports" for the gauges.
I also fitted new superflex bushes on anti rollbar outer.
Could you share the part number? I may be interested too, because those
are getting wear out in mine 33 as well.
P.S.: I was spent some days in Norway, back in 2011 and 2012, and I've picked up some words.
I think the morning TV shows in English with Norwegian subtitles are very useful. I've made
some notes for later reference.