Disco 2 Ideal turbo pressure at full chat?

I have had a dynochip reflash and given the engine a full service and it seems to be solid with 160k miles.
The PO had made all sorts of adjustments to the turbo, modulator etc so I have reconnected the modulator, cleaned the MAP and MAF and put new hoses in, but now need to adjust the wastegate.
With 13 threads showing it is producing 1.17 bar at full throttle at 3000 rpm.

What should the correct boost be? I haven't seen any overboost condition from the modulator either.

Thanks

Wind it up to 10 threads without fear and if you get overboost get back half a thread once, ideal would be to go up to max 1.4 as at 1.42 is the overboost limit though if you get it to 1.35 you are OK cos the boost might vary according to some factors

if you watch it with nanocom use the inputs fuelling not instruments cos it's more accurate as actually the overboost is at 242 manifold absolute pressure

Thanks - I'll try that and retest tomorrow