Swapped the plugs over today, the plugs were a on the black side, the plugs spark ok, will replace the dizzy cap and leads in due course. Checked the fuel pump and it does pump (on turning the engine over and on the priming lever). Car turns over well but will not fire. Not sure how to check the carb but despite cranking the engine over there’s no smell of fuel on the plugs - I’m guessing the carb could be blocked.
It’s a Stromberg, the choke doesn’t seem to be working properly (the movement is limited) and needs checking.