Re: Stalling with choke out
My experience with both Stromberg and Holley carburetors has been that some choke should be needed to start a cold engine (either because of cold weather or sitting overnight any time). If no choke is needed to start a cold engine, then it is probably running too rich all of the time. I agree with Fetch that full (or even 2/3) choke will (and I think should) kill the engine or, if you are trying to start it, will flood the engine if left on for more than a couple of cranks. And a little faster idle helps the engine keep running with a small amount of choke while it warms up.
I am also wondering how you would lean out the carburetor when the choke is not on? I think that on my current Holley, this would require putting in smaller jets. I can't remember if there was an adjustment, for other than idle mixture, on the Stromberg.
JRMunn
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