I would suggest Beamish Morgan (was Macdonald Racing) in Co. Durham, which is probably your nearest dealer. They valued mine for me when I last had it serviced there.
Good suggestion. Plus added bonus if you go to John MacDonald/ Beamish they have a couple of guys who are brilliant on the dyno ( I'm assuming they are still there) so you could get a good picture of power output and what simple steps could improve it
I think NPuttick did that when he fitted a Rob Wells exhaust and he was pleased with them
G
