took new carburetor and fresh installed acell 0116 plugs for short city traffic drive. and all seems well and a considerable improvement.
finally got truck going in and out of overdrive smoothly. new "old stock" carb (told by carb rebuilder it is a 2210 for a old stock chevy) has good mix control and i have it spun out about 3 turns. will start to stumble around 2 turns out. old carb would keep running if mix pins all the way in.
dont really understand the speed cam on throttle side, how it works or how to adjust it. also it has a stove choke. that i dont have hooked up.
still has a rythmic noise to it. and i have to note that noise disappears almost completely when its in overdrive, idle or cruise. so i dont think its anything mechanical in engine. would like to tune motor so the noise during acceleration was less. but truck runs great now. just have to figure how to tune it for smog.
VERY HAPPY TODAY!!!