Ignition tuning possible problem

[mladjan]

I have a problem (assuming with ignition timing) in high revs.
Car is pulling fine in 2nd gear, but from 3rd it doesn't work well from 7.7k to 8.4k
In log, there are multiple examples (this is recorder on track) and one of examples can be seen on 20:45 (also on screenshot bellow).
Only difference I see is that ignition becomes smaller (up to 17), I even removed "Gear ignition compensation" to try it.
Also, I saw few knocks on this long run, its not something huge, but also would like to know what you guys think about that.

Can someone take a look and give me some advice what to do regarding this issue?

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[Spunkster]

At that time something is causing your throttle plate to close. There may be a problem with the throttle body. Try swapping the throttle body with a known working one.

[mladjan]

It was ignition problem. Added 2 more ignition in these high sections, and changed knock ignition limit to 60, so it doesn't retart anything from my map, and there is no knocks.
Thx to Jerome :)