Re: 66 ford/howe fire truck -- need info/help
The rebuild kit for the carb should be available from NAPA or the like.
Shop manuals are readily available. A lot of the parts are the same up through the mid-1980's. If you need anything in particular, I can copy for you.
You are right about the pump panel. Nothing electrical except for maybe a few lights. You might want to check the PTO and work your way through to see of the pump is actually turning. The impeller might be seized or something jammed in it.
1966 F-100 352 3 speed