Empty Fuel Cell Symptoms on a full tank!

Hey all, I just got my Duster Legal with getting the lights fixed all around. When testing and adjusting headlights last night while accellerating the motor acted like it was being starved of fuel (hesitation, sputtering, Power Loss). I have a 360 with a eddy 1406 600cfm and a Carter Mech Muscle car pump! I have a 16 gallon fuel cell and my fuel line is routed away from the header. This is not the first time it has happened. After it stalls It starts back up afetr a couple of cranks with full choke! My first thought was vapor lock. Any other suggestions?

Thanks,
Brian Hall