I have a 83 MCSS with a 454/th400 trans anyway i been having gas delivery issues out of the blue like the electric fuel pump won't suck the gas out out of the tank unless I blow a air in the gas tank line and it will come flooding out which I would hurrly connect the fuel pump back to the hose and the car would run but bog when I try to mash it after 50 mph and would idle badly so I would park the car and come out the next morning and try to crank it would catch then die then I pull off the gas tank to fuel pump hose and blow in the hose with air and it would come gushing gas out alive again so I dropped the tank thinking something is clogging the tank after it runs for a while is the fuel sending unit suppose to have a hose connected dropping into the tank right ? I'm so confused because the tank have sections inside. Just need to be pointed in the right direction I'll post the pics