My car has been back on the dyno today, finally
It had an oil change beforehand because there was a bit too much fuel in the oil from running rich during the initial setup and tuning (and it's still being run-in, with running-in oil).
We bumped the boost up to 15psi (still nowhere near the 20-23psi that I'll be running once it's run in), and it easily made 200kW atw at about 6500 RPM
There will be more progress to report soon I hope, but my full-power target looks like it will be very achievable once the engine is run-in.