69Mach,
No, I wasn't saying that he has a double pumper with vacuum secondaries. Bad wording on my part. What I was trying to say was that when the vacuum pulls the secondaries open, he could have some dirt blocking the fuel path into the carb. I have 850 Double Pumpers on both of my cars and like them. But I am awful at getting my meaning across in posts a lot of the time. Only problem is the one with no choke is cold blooded as the devil.
By the way, my signature I don't have a clue as to who wrote it originally. I have a small daily saying leaflet from my church that I read each mornings saying and it was the signature on one of those pages but they never give the people who wrote them.
Ron