Sadly, haven't had a chance to retry it yet. I've been working 12 hour days, and just pulled the front axle off and am in the middle of trying to get a disc brake setup on the front wheels, so I've been working as much as I can before I collapse at the end of the day. I'll try and get to the carb as soon as I can and report back here. Found out I may have to move at the end of the month, so my priority changed to getting the truck rolling so we can push it out of the driveway and onto a trailer if need be. Life can be crazy sometimes.
I'll let you know how the carb goes. On the upshot, I don't think the float is sticking. We've tried two different floats, and there is no sign of wear on either where it would contact the side of the carb.