Don't forget the ole coil and coil wire,mine use to run like a top. then stop when ever, it would always restart but just about drove me crazy, I replaced the coil and I have had no problem since, I found out that alot of these old trucks are just trial and error even with all of the good advise from the bolt, sounds like a fuel problem but sometimes if you are getting fuel it is in the electrical part, at least we do not have to deal with the new electronic stuff...good luck..Fred