Fuel not getting to carb

I was trying to fire up the 360 in my Duster and put fuel in the tank and primed the carb.It kept wanting to start,but each time I went to look,no fuel was squirting out of the carb.I disconnected the line from the carb to the pump and it was bone dry,but disconnected the line from the tank to pump and sure enough,there was fuel.I did take the fuel pump before this to paint the engine,and Im positive I put it in right.The pump arm goes under the ecentric,right?Well,I did have a hard time installing it back in the engine ,im hoping I didnt destroy the pump doing this.What should I do?The pump is fairly new .The ecentric was in a position that the pump wouldnt go in straight.Im thinking I shouldve turned to motor to where the ecentric was in a position to install it straight.How can I tell if it is bad while it is out of the motor?