Yesterday I put a new fuel pump on my 73 280C. I wonder if I even needed a new one as the old one was not bolted on tightly, and once removed it pumped air just fine. Strange evidence to find on a car purchased non-running. I got the car running great, but it smokes something horrible. Then it quit. I noticed that the fuel tank is dented and that the outlet and return lines had been switched vice versa. I took it all apart and the fuel (about four gallons) trickled out pretty slowly. Could the dent be causing an obstruction of the fuel flow? Are these tanks built with baffles on the bottom to seperate the flow of fuel out and for the return? The dent is smack on the drain plug, so I dont know if it will come free or not. Any advice would be appreciated!