LOL...This symptom is plaguing theses old trucks, like arthritis to old men....see my thread on 'Rochester B no idle after rebuild'.....Well after tinkering I got it to idle, but coughs,sputters & stalls upon acceleration..... Hot Rod Lincoln aka Jerry, as with others, have been very instrumental with advise....Jerry was gracious enough to speak with me directly....He is most knowledgeable, understanding & patient..... The biggest advise he gave was checking the basics.....vacuum, timing, ect. something that I know, but in the cobwebs of my dormant mind,but lost sight of....As time allows I will shift my focus to the basics....My truck as well, has a HEI distributor, was there when I bought it...the only modification....and I wonder why ??? . I have another truck with a 292 with the stock points distributor and it runs perfectly..... I don't have the technical ability to diagnose internal springs, weights, advance curves & what ever else is in there, but I can replace the distributor with the points and reset the timing.....and I'm good to go......A spare points & condenser in the glove box, never left me stranded....Good Luck.....