Review on ALAVENTE Carburetor For Ford 240 250 300 YF C1YF 6 Cylinder CIL Engine 1975-1982 D5TZ9510AG, Carb For Carter YF Type, Replace # RSC-300A 6307S 6054 6055 6-736 6056 6057 6058 6059, Automatic Choke by John Bones

Worked well out of the box w/o tuning on a freshened up Ford 300 with 240 head. Consideration needs to be made for the thermal choke if your application had a manual one. I didn’t see an obvious way to make it manual without modifying it significantly. (Didn’t want to hack it up before seeing it run!) The fitting on the choke housing seems bleed from the idle circuit. Copper tubing wrapping the exhaust manifold between the air cleaner housing and choke mechanism seems like a good option. But, I haven’t tried it yet.