Is there any way to check the fuel gauge for 72 SS dash? I know the sending unit is good. Gauge gets 11.8 volts to one side and 5.6 volts to the other side but does not move needle. Can I ohm out the gauge or is the volt reading accurate indicating a bad guage?

Maybe this will help:

http://www.chevelles.com/forums/showthread.php?t=156236&highlight=powerpoint