Thanks so much to all of you guys. The collective knowledge of this group is amazing to me. After reading on here about spark plugs, I installed new AC 45 plugs that have been sitting on the shelf in my shop for many years. I haven't driven it since, because I got side tracked with installing my bed. Today I will install tail lights, and get the truck out on the road to see how it runs now, and will report back. If I still have a problem, I feel sure that the carb information here will help me to work it out. THANKS