The factory installation of the hand throttle cable connection to the carburetor is the cable sheath (outer cable) is threaded thru the choke, throttle bracket and the wire is fed through the hole in the linkage that is fitted to the carburetor. There is a small barrel shaped fitting with a hole for the wire and a set screw on the end to hold the wire in place. This allows the hand throttle to be used and still the foot feed works up and down on the wire of the hand throttle. I worked on the engine line at the Van Nuys Chevrolet assembly plant so I saw a bunch of these before they came off the assembly line.
