94 carb leak at accelerator pump shaft

[1948F-1Pickup]

I just spent 2-3 hours over the course of a couple of weekends screwing around with the one I have, which has maybe 2000 total miles on it. The rumor is, they don't like to sit and I found that mostly true. This one sat while I had the engine out and being messed with by the builder.... so in three months I experienced different carb behavior than I had beforehand.

That pump well is an interesting design. Not sure why exactly Holley did that. (tapered bore) I ended up replacing the pump cup with a new one (synthetic, just like the one that Edelbrock put in there originally). Still had a weak pump shot. I cleaned passageways, scrutinized parts and concluded that that squirter nozzle (as supplied by Edelbrock) is a piece of junk. No amount of cleaning, even with a needle drill bit, made that thing squirt even remotely the same on both sides. I ended up borrowing an original 71 nozzle, which solved the issue.

Additionally, my opinion, is that that top carb body gasket may not do the trick as far as sealing. I didn't sand the mating surfaces of the casting, they looked to be pretty flat and pretty smooth on this particular carburetor. I did go with a slightly thicker top gasket.... although this bucks the opinion of many people, who say it will eventually leak, this one has been dry for a couple of years after I initially changed the one that was on it from Edelbrock...... which leaked in way under a year.

Going back to that pump cup deal, if fuel could get on the top side, I'm not sure if it would make it all the way up to where it could wet the pump rod shaft and dribble down that way.
I guess anything is possible though....