AOA.
My petrol engine LC with original 3F engine despite numerous tune ups, carb rebuilds, timing settings and plug changes still has a missing issue while idling and when accelerating the car kind of bogs down between 1000-2000 RPM and the take off fine. With throttle fully pressed at the top revs, it puffs out black smoke which would put a diesel engine to shame. Many mechanics have tried their hand at it and i have run out of ideas. Any help on this would be much appreciated! Regards.