URGENT: No power at the fuse box

[SilveradoDude]

Guys I have an 85 Square Body. Parked in an awkward spot. Truck was running fine. Moved it slightly to do some cleaning. Went to restart zero power. To anything.

-New Battery fully charged.
-Put the meter on battery, good
-Put matter on the two red leads of alternator good.
-Checked ignition fuses and others good
-Put meter on fuse box, no good

The power cable TO the fuse box has power.
The box itself does not. I am think some water got to the box when i was cleaning.

I blew everything out with compressed air but still no power at the box.