I have a 9n ford tractor that after it runs for 20-25 minutes starts to mis and die everytime, I have put in new coil, condenser, plugs, and rotor but not points can someone please help
Welcome to TBN :thumbsup:. Really sounds like fuel delivery ie fuel tank has junk, fuel valve not all the way open, stuck carb valve etc.
Post in the vintage forum or New Holland forum for more opinions