Thanks for the replies and suggestions. Fuel pressure is something I've thought about that might be caused either by a faulty pump or a blocked fuel filter. I will have a look at the GoMpg site to see if there's useful info there. In the meantime I have someone who is hunting for a throttle potentionmeter, and when they've found one they'll send it to me along with an ignition amplifier module and new coil. The latter two items I'm less confident that they're the problem since the car starts well but I'm prepared to be surprised.
In reply to the comment about +8 four seaters, the only one made at the factory was for Allon White; I think a 1973 green car I nearly bought it a few years back but the price was too high for me. Mrs Morgan's car was an automatic DHC +8. A handful of +8s have been converted and I think it was Harpers who commissioned the body and frame, I presume on factory plans. If anyone knows more I'd be delighted to hear. My car was an abandoned rebuild from the early nineties that I came across in June 2019. I then had the car completed to my spec including LHD. The rebuild took a lot longer than expected due to COVID and I'm thrilled with the car but frustrated that she's not running properly.
Cheers
