How about some basic info? What vehicle? stock or modified? Has this been from the first day you got the vehicle, or did it start after doing some work on the vehicle? Some of us are pretty darn good at diagnosing and fixing problems, but mind readers we are not.
(i’m a newbie) 73 duster, stock, first time running in 40 years (for more than 10+ minutes) was a few months ago, so not sure if this was always a problem or not