53 Buick carb issue PLEASE HELP!!!!!

With the carb apart, you should be able to blow air (or some kind of liquid) from the bottom of the accelerator pump well (there's a hole at the bottom, right?) out the hole at the bottom and out to the sprayers near the venturis.

Sometimes (and I'm not familiar with this carb) the little check balls aren't in their right location or have some gunk holding them open and off their seats, and this allows the gas to be pumped back up into the float bowl instead of up and out to the nozzles.

Hope this helps....