71 340 running bad

Exactly. It is almost impossible to diagnose this over the phone. THese threads can go on forever with dozen's of hours spent posting suggestions. @bballfan1 you need to find someone local to you that knows their way around old cars.
I agree, especially after the hints to give more information have fallen on deaf ears. I don't understand it. If I needed help, I'd be splattering all the info I could on here. Like I always say. "My car runs great". lol