Help I am out of ideas. My buick was running great in driveway, then it just stopped. I thought I ran it out of gas. Put in a few gallons. and no gas to the carb. ran a line from the pump to a small container of gas. No gas at the carb. So I bought a new fuel pump and still no gas to the carb. I took the pump off and was able to get it to pump gas on the workbench, if I plugged the vac port on top of the pump. What else can I do ?? Ready to throw a match on this thing. Help Please.