Fuel issues

What type of carb do you have. Seems to me the fuel tank would not have anything to do with a no start. On a holley carb theres enough gas for 20 seconds or maybe 30 before its dry. Even a Eddy carb should be good for at least 10 seconds. Maybe the carb has a leak and the fuel tank and lines are fine. Sometimes things break right after another one. Unless its F. I. , its in the carb, not fuel lines or tank.