i recently purchased a wber carb for my 87 b2600 4x4.everything went well, but now i get no fuel from the fuel pump. the pump is in the tank.i removed all the junk from thedrivers side compartment but i now i dont get any fire to the pump itself.any help because i know it must be something simple.thanks for any help.

 

It has a fuel pump control unit,a fuel cut relay and engine speed switch. You can bypass those by powering the fuel pump in key on position. The black/white wire off the ignition switch is the power for that circuit i believe.