Choke stove question

Do yourself a very large favour: skip the factory choke thermostat, which is not adjustable and requires a (finicky, failure-prone) choke heat power modulator. Instead, get one of the electric choke kits. Bolts right on (sits atop the exhaust manifold perch, doesn't care what the pocket looks like), fully adjustable, much nicer. Use kit № 1234 to properly hook up to a Holley 1945 carburetor, which is what most '74-up Slant-6s had. Use № 1231 if you're running a Carter BBS or other pre-1974 1bbl. Use № 1232 if you're running a 2bbl "Super Six" setup.