I did both chokes on the W-1 set up I did. Much better in the cold New England winters.
I buy a choke cable from a British Triumph sports car.
Most of the imports in the 50's and 60's ran dual carbs and developed various ways to run cables. The Triumph has a single knob and splits into 2 cables behind the dash. Simple installation, just replace the knob with the Chevy one.
