I had a similar experience when I first started my truck this past March. It would start and run only by pumping the accelerator then stall maybe five seconds later. Convinced it was a starving fuel issue, I rebuilt the carburetor then disassembled/reassembled it three additional times with similar results. At that point I’m wasn’t sure where to go from there. I read a few posts on this forum and one post hit me to keep it simple. I had not done much with the distributor aside from checking the points and checking for spark so I figured I would start there. After replacing the points and the condenser the truck started and continued to run. After testing the removed condenser I confirmed it was bad. I screwed with that carburetor for over a week and the real cause was the condenser. I did however learn how to properly rebuild a Rochester type”B” carburetor. Just a thought!
