David,
Might be good to verify what carb. you have, but lets get really basic here . . .
Your existing carb DOES have a choke, correct? I mean literally, the choke plate towards the top of the air horn, the part that swivels up to 90 degrees to cut off air flow, increase vacuum, thereby drawing more fuel for a richer starting fuel-mix?
The shaft it's attached to should go through the air-horn wall of the carb, and attach to a sort of disc with an arm on it, mounted to the carb itself.
Then, a cable would hook into that arm, and said cable's jacket or sheath attaches to a boss/stand-off/arm thingy which is also attached to the carb. I suppose someone could have removed this piece from the carb, which means you have nothing to mount the choke cable to. The cable usually slides through a loop in this mounting, and the loop is tightened with a screw.
If you don't have this mount, you'll need to get one to remotely (from the cab) operate the choke.
Otherwise, if you're just missing the choke cable itself, they are available. It looks like many throttle cables, just an armored, fexible cable with the wire poking out at one end, and a knob with a "C" on it on the other end. They are available from most any Chevy parts supplier, OR you could even get a generic one at the auto parts store.
Then it's just a matter of running the cable through the fire wall (should be a hole for this already, with a grommet in it) and mounting it in the dash. Hook it up to the choke plate and tighten it into the carb mount, and you're good to go.
Sorry if this is ridiculously simplified!
Hope it helps,
-Michael
If you have the choke and
