Maybe give this guy a call and describe the situation. Tell him the carb has been modified by PONY and that you want to retain the calibrations as he finds them but need a complete rebuild to make it serviceable.

If it needs donor parts and he doesn't have them, I am sure we can find them.

- http://www.thecarbshop.com/home.html

____________________________

6 VOLTS/POS. GRD. NW INDIANA

It is possible that it is not a carb issue.  A lot of time when things go bad after warming the engine up  up it can be an electrical or mechanical issue.

54 Victoria 312;  48 Ford Conv 302, 56 Bird 312
Forever Ford
Midland Park, NJ

Another possibility is a leaking intake manifold gasket.  Have you tried just retightening the intake manifold bolts?

How does the top fuel cover gasket on the carburetor look?  Your symptoms points to too much air coming into the air bleeds and a worn or broken gasket can do that.  The choke is likely compensating for this when the engine is cold assuming that the choke is functional.  If you can give me the stamped number off of the top of the fuel bowl cover, I might have an extra cover here which would at the very least, take care of the boogered up air cleaner stud hole.  That enlarged A/C hole could be the source of your issues.

Lorena, Texas (South of Waco)

?  The stripped threads are in the float bowl, not the cover. A replacement cover would be appreciated, since mine is damaged, but the rebuilder would likely need another bowl also, though I suspect many used ones have bad threads too, from over-tightening the AC wing-nut. Cover gasket is new, BTW.
An air horn seal failure is a possibility, since trouble started when I reestablished the cover’s vacuum seal. I’ll check the manifold bolts though.

6 VOLTS/POS. GRD. NW INDIANA

6 VOLTS/POS. GRD. NW INDIANA