I HATE FORDS! I tell you, I almost started liking our '81 f-250 but we went out and looked for a Christmas tree this week... I Tried this in the right forum for a bit, but not too many replies, so here I go!! It has a 4 speed, and I think a 351. In first and second it is fine, but when I get to third it doesn't move. I can idle, but when I try to accelerate it chugs and is really sluggish. I gave up trying to drive it, and we came home. On this main road there was a huge logging truck right on my tail, and I'm only going 25km/hr of the posted 50 km/hr. I couldn't move any faster and I couldn't pull over even with my floor fullly depressing the gas pedal. I don't get it. I got it in second and reved the dingles out of it, then it ran okay for a bit. It was almost like something was stuck or gumed up. The automatic choke is sticking too, which is a pain. What a gift...we are trying to sell it and now it runs like diarehha. Any help? My uncle said it might be the fuel pump, but if it was, wouldn't it have the same problem in each gear??