It isn't necessarily an issue with the newly installed hardware.
First of all, dyno reads differently at different times. You don't expect power gains please from pre and post intercooler piping and LPFP. No one does.
The drop of rail pressure down to 130bar (1900psi) is at the edge but most of time it's not low enough for DME to pull back load. And timing falling is a direct result of the lack of octane for the boost/IAT that you're dealing with.
It looks to me the software may be flawed in your particular case in the first place. I would be asking to adjust it.
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Lemania 2320
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