I have a 1983 CJ7 with the inline 6 258. Now this guy was supposed to start a rebuild a month ago but someone wreaked my other vehicle so it is my daily driver this winter. It has about 137,000 miles on it and has ran pretty decent. I have replaced various parts on it including the gas tank and sending unit. Just last week driving to work as normal the engine started to miss a bit while accelerating and went away. No big deal. Well it has gotten worse. Today coming home from work i could only get it to about 10 Mph because it was missing so bad and the more gas I gave it the more bogged down the engine became. I pulled over into a parking lot because I could smell gas. Got out and looked under the jeep and in the engine compartment but found nothing. (It was barely running when I got out but 2 minutes later of sitting there at idle and it sound as normal with no missing. I go in and started driving and as soon as I gave it any gas it the engine started to bog down and miss. I put it in nutral and put my foot to the floor to try to blow out the gas in the engine and it took about 2 minutes to get the engine to 3000 RPM and then it just bogged down and died. I tried to start it back up and after a few trys is started back up realy missing bad and after about 2 minutes of sitting the at idle it got better and the idle was normal. Smell of gas when it is missing. I have already put a new coil in it. It is also cold when i drive it. Only 5 minutes to work drive. Blows black smoke bad to when it is running bad. Any idea what is the problem? Seems like it is getting loaded up with fuel but the choke is not sticking. The carb is not original but aftermarket. All the parts I ahve put on it are at least 3 months old and made a 1000 mile vacation with no problem 2 months ago. Any help is apreciated. Thanks.