Fuel feed problem

[slikside]

How much engine cranking should it take to start pushing fuel out of the carb supply line after acomplete fuel system purge/ cleaning?

Truck specs in my signature line...

Tank was pulled and cleaned out due to disintegrated sock and other contaminants. Fuel supply lines blown out. Sock replaced, float replaced, sending unit reinstalled with new gasket. All lines reconnected as they were previously.

Per the manual, I put 6 gallons in the fuel tank, disconnected the 12v feed to HEI, put a hose on the output end of carb supply line to a can on the ground. I reconnected the battery, and have been cranking to put about 1/2 gallon into the can to purge the pump. I have cranked and cranked, but nary a drop has been put into the can. Am I missing something? Any ideas? Thanks all.

Oh, and I don't think my fuel guage is working now, but I can tackle that later. I'd just like to get the truck running again for now...