No gas in the pump on a carterbrock? The fuel fills it by flowing into it by a slot in the side that ties it to the driver side fuel bowl. Are you sure your floats are adjusted? If they are very low, the fuel will never get to the level of the "spillover" slot of the accelerator pump well. PS> it also may fill via the "pump intake check valve" located at front bottom of fuel well, I think it depends on year.