Thank you all for your comments. I’ll check the bleed hole, needle valve and float. It could well be one of these that is causing the problem. I’ve had the car just under a year. It was running a little rich when I got it, but gradually got worse. The car has been off the road for a few months while the gearbox was overhauled. It is highly likely that the carb needs a good clean. That’s my weekend sorted out then.
Anonymous