Hi Steve,
Northampton Motorsport over on the Rothersthorpe Road Industrial Estate in Far Cotton, Northampton come highly recommended for any tuning, including a rolling road.
For MoT's etc, and any servicing, try Motorvation up the road a little. Very caring owner.
Any tyres & small jobs, ring Dave Barringer who owns Northants V-Twin in Northampton. His brother owns a Morgan (and is registered on here). NVT are a Harley garage but Dave does most of his brothers Morgan jobs.
Allon White are just off J14 of course..
