I know the tank is plumbed correctly, but I did have one of these screw together fuel filters in the carb feed line. I say did, because its not there now. All fuel line connections now have clamps or zip ties on them, but the only ones that didn't before were the ones on the clunk hose in the tank. That hose had softened up in the gasoline and while it wasn't falling off, it pulled off both the tubing and the clunk with no resistance. I'm using Tygon for all hoses except in the tank. The Tygon was too stiff and the clunk wouldn't move properly so I used the black Neoprene hose that DuBro sells. It was recommended by a friend who runs the stuff inside all his gasser tanks.
http://shop.dubro.com/p/2-ft-neopren...essories?pp=12
I've now had a fuel bulb sucking on the carb feed line for hours, and it isn't changing. So I think this indicates my fuel system is sound.
Once I finish putting it all back together I'll give it another try. Thanks for the suggestions and input!
Kurt