Problem resolved

In the end it turned out to be the Throttle Position Sensor (TPS) was out of position by a small fraction. It had probably been bumped in transport. To adjust it is just a matter of loosening a couple of screws and rotating the TPS until the desired reading is achieved on the computer screen and re-tighten the screws. Not too tight so as to avoid damage.
End result is just fantastic. The car takes off like a scalded cat and certainly produces enough power and torque to satisfy me on the narrow and winding roads I have to drive on around here. In fact I am very conscious of the need to not overdo it on a public road with no room for error.
The sound on an open throttle is just superb and I am a bit inclined to give it throttle just to here it growl.
It has been a bit worrying at times but now we are seeing the expected results on the computer log which indicate that the fuel air mixture is pretty much spot on.
Power output is expected to be about 180hp and torque about 158 lb/ft at 5,500rpm. I can't easily check it on a dyno but I can well believe that this is being achieved judging by the feel of the car on the road.
All in all I am happy with the result.
Thanks to Williams and Omex for putting this together.

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