I have a F100, straight 6, 1981. Does anyone one have a vacuum diagram for this vehicle?

The truck was originally California emissions, but I want to pull off as much as possible (i.e. Pump, intake vents, etc.) What are the bare minimums that I need to make it work.

Thanks
D12

distributer vac advance,heater vac line,brke booster,pcv valve,cruise if you have it.that's the bare nessecesties.