Thanks a lot Tyson! That is very valuable advice to me.
Just to make sure I undestood you correctly let me summerize:
With the T cams valve lift at TDC shoud be between 2.4 and 2.8 (I have set it at 2.6).
With the E cams valve lift at TDC shoud be between 2.7 and 3.1 and your recommendation is to set it at the end of the spectrum (3.1).
As to fuel:
I believe getting higher rated fuel is much easier around here compared to the US. On selected fuel stations I can get up to 102 octane ROZ which shoud be equivalent to about 98 octane in the US rating system.
What I can get at every station is the European standard fuel "Super 95" which equates to US Premium "91" and our "Super+ 98" which equates to US 93.