I have a 1986 city that I have rebuilt with custom paint and done custom interior. It is a really low mileage car with paperwork to prove it but when minis became really cheap cars someone took the original A plus low mileage engine out and put it in another car.
When i bought it the car came with a pre A plus engine which I have had in the car running and it seems perfectly healthy with no leaks or smoke, just an idle with misfiring and occasionally misfiring in the revs under load but in general has plenty of power for the car. Could this be the carb or cheap Chinese electronic distributor which I have no clue on it’s age?
Long story short should I correct the issues with this engine or get a 998 A plus engine back in it? Or even put a 1275 in even though I don’t need the extra power, is either better for it value etc
open to all suggestions