carb problem

[Dan]

rebuild the carb in my parts hauler - its a carter YF one barrel on a 250 all stock with the exception of headers - and it seems to running okay with one exception. when it put it in gear (T350) it dies unless I am pretty heavily feathering the throttle. It idles fine in neutral and in gear, but when I put it in gear it dies. There is also a slight hesitation off idle if I give it too much throttle. Any ideas ??

[jalopy43]

Sounds like the idle transition ports could be clogged.Did you blow out all the passages with compressed air? The hesitation off idle could be a faulty accelerator pump system. Could be the pump itself, the check ball(or needle),or the squirter nozzle. Tending to die when put in gear could be a vacuum leak somewhere too. Glenn

[Dan]

Wow, that is a long list of things to check http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif I blew it all out after soaking it in a brand new bucket of carb cleaner and then washing it off with carb spray. Cant say for certain I have everything adjusted right inside the carb, first time inside a Carter YF and shit was kinda weird in there...

[Mojo]

I've experienced that before, probabaly 2 or 3 times... it seems like it was always caused by a vacuum leak. Once that I do remember, it was a q-jet with a screwed up baseplate gasket. I'd yank one of the vacuum plugs or lines, and see if it makes it run worse.. if not, it's a leak.. well, i'm sure you know the drill...

[Deyomatic]

FYI, you can get a rebuild kit for it at your local NAPA. I don't have the part number, though. It was around $25 or so.