Re: rochester carb flooding engine?
I am going to bet there is a leak in the bowl gasket.. I would check the tightness of the screws that hold the bottom plate to the carb, and the top plate as well.. that is way too much gas sitting in there to be explained away with accelerator pump squirt.. The carb looks new, so, I would doubt a float level problem, because that would cause problems when running... I will bet the main well is leaking down after shut off - Rochesters with dry gaskets are notorious for it - I always seat my gaskets after soaking them in gas first
Also, could be something as small as a check ball that was not put in during assembly... I would take it apart and make sure it is all there, and re-seat all the gaskets