If you have some cheap type pumps, many times the impeller blades will strip on the motor shaft due to fuel varnish from just sitting for long periods of time. Motor turns, but impeller is stuck/stripped in housing.
You also probably have pusher fuel pumps. One is near gas tank and other is further up the line due to distance, to hold up fuel pressures to carburetor.
With no fuel coming out of either pump, you first need to determine if the fuel filter sock in tank didn't disenagrate and plug up the fuel line. It's possible you may have a plugged fuel line at the tank and tank needs cleaned out.
Del & Jerre w/Isis our English Bull Terrier
The Cougar's Den
1984 Fleetwood Prowler "E"