Originally Posted by buoymaker
I agree with you Jon G. I'm just going by the Carter sheet I posted earlier.
It plainly says YF-2100S for 1950-59 Chevrolet trucks with 235 engine and manual choke.

Please correct me if I'm wrong. I don't mean this to sound critical. Just curious.
Your YF 3211S is installed on a 1959 truck with a 1959 235 truck engine?
You added a exhaust manifold choke stove and associated plumbing?
Did your air cleaner have to be modified or adapted to fit the YF 3211S?
I know this is a "sticky" topic but are you using ported or manifold vacuum for your distributor?

Oh, I don't mind questions at all...yes, the engine is a 235 from a 1959 Chevy and the 3211s is installed on it. I used an air cleaner I picked up decades ago from a slant six. It had the center mount. At that time I was using a Rochester BC and that air cleaner fits both carburetors as both had the center mounting post and the slant six also used a one bbl with the same size bore. Plus it looks good and replacement elements are plentiful. About a year ago I bought 6 on Amazon for $5.25 each with free shipping. You know Carter dropped the manual choke with the 2100s. If manual choke is important to you, then the 2100s is one option...although I should be honest and tell you there are converters which allow you to alter an auto choke to a manual choke. Dorman makes one. I've seen people use these since the mid 60s, but I should further be honest and tell you I got over wanting anything with a manual choke around 1965. That is when it dawned on me the auto choke in good nick is smarter than I am at the same job. I didn't have to do anything with the exhaust manifold. The Carter bolts right on to the stock intake manifold. The exhaust gas flapper did need a new spring about 2 or 3 years ago, however. The Carter 3211s was designed for ported vacuum. Somewhere I have the specs for the slot if you need them. Since I only had the choke stove designed for the Rochester, I had to lengthen the tube connecting it to the carburetor, but about a year ago I found a stove designed for the Carter auto-choke models and will swap them sometime. Hope this is helpful.


~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end