Fuel tank clogged
74 GTV. Been sitting for a while, trying to get it running again. Car wouldn't start, and traced it back to no fuel getting to the carbs. Fuel pump runs, but doesn't pump anything. Pulled the hose off the bottom of the fuel tank, nothing comes out. There' 4-5 gallons of gas in there. Use compressor to pump air into the bottom of the tank, and I can hear it bubbling in the fuel. But no fuel comes back out. Any ideas?
Is there any kind of check valve in the tank?