Soooo.... They have spoken....
The inherent driving characteristic of the Morgan Roadster 3.7, is the same as the Ford Mustang 3.7 and we have no control over ECU maps or settings that are supplied by Ford Motor Company / Revolve while doing the initial testing drive ability and emissions calibration.
All Roadsters are calibrated to exactly the same standard which was defined by Ford/Revolve whilst the vehicle was tested to the legislative requirements during the EU5 calibration.
They do propose a solution though, 'tis an "Upgrade" using the ARV6 ECU and changing the dual mass flywheel to a lightened standard flywheel.
The upside is more horses (up to 320 from 285) and better driveability/throttle response.
The downside is it's not cheap c£4k