Dual capacity pump wiring

[scottsdaleowner75]

Does anyone have a schematic or pics of their own truck on how the dual capacity pump is wired up? I know it is wired to a solenoid on top of the thermostat housing and then to the quadrajet but i havent any idea what color or where the leads are. Infact i believe the connectors are missing. (ino on where i can find thos would be awesome too!) My truck is a 1986 chevy scottsdale with a "H" for my 8th digit in the vin. and the engine was originally a federal emissions low altitude 305 with a non computer controlled quadrajet. I believe the vacuum decal on my radiator support reads YDR. Any help would greatly be appreciated.