Electrical Challenge -Head Lights

[xRugby8]

69 C20 350 4sp stick

I have another electrical challenge. When I go to turn on the head lights I get lights every where but the head lights - Instrument panel, front and rear running lights are on and working correctly. In looking at the wiring diagram it would seem to me if there was something wrong with the switch then these other lights would not be on. It also looks like the switch is a breaker; therefore, there is no fuse to replace. Also, I bought new lights plugged them in and nothing.

Any suggestions?

Here's a little back ground -When I bought the truck (over a year ago) I believe they worked. It has just been sitting until recently while I've been making repairs. I also just replaced the old distributor with an HEI distributor, iginition, and coil.

Thanks
John