MRS, I have zero ideas what your carb even looks like. Maybe post a picture or three and we can see what you are working with. I know I once had a carb that kept giving me a problem even after two complete rebuilds. And I never ever removed the little welch plugs on the carb. So I decide to remove them this time and there was a lot of trash under one and that fixed my carb issue. So you have to literally remove and thoroughly go through every little tiny passage to make certain there isn't some trash plugging a passage some times. If you honestly think the carb still is your problem, why not buy a new one? It would be new, clean and ready to run. And if you still have issues after installing a new one, then your carb was never the problem to start with. JMHO!