Ok, my flooding problem still exists. My Carter YF floods and stars the engine. It was rebuilt with a kit from Carb King and I checked the float settings with him in the cleaning and rebuild process. I also soaked the carb in cleaner and did a good cleaning before reassembly. When I installed it ,the engine fired immediately, had good vacuum. I checked the timing was and it was right on the bearing at about 500 rpm. I thought the problem was solved with the rebuild and moved on to fix some bad wires and properly wire my 6V alternator. I started and ran the engine to check the wiring, it ran well and everything electrical worked . I went to start it up and it was back to the old game of immediate start, runs a little and then floods out with gas coming out the throttle shaft. The fuel pump is a reliable glass bowl model for the engine, I checked and all of these models fit the 216 and the 235, so overpressure does not look like the problem. I also have an inline clear fuel filter installed prior to the fuel pump, to eliminate anything coming in the tank. The tank was cleaned some years ago and the filter is clean. So by my way of thinking I have clean fuel going into the fuel pump where it gets filtered again through the screen,eliminating debris that could hold the needle and seat open and is at a proper pressure from the pump, which fits all Chevy 6's from 37 - 52.
Anybody with an idea that I haven't addressed or any idea that of what this could possibly be?