Maybe I should have said "where available" for 32-62. "There are several versions of the YF. Its just a universal replacement carb as said. Available in both mounting stud sizes. The 1932-53 216 had the smaller mount and the 1950-62 the larger" (32-62)
They are much more simple than the Carter W1 version used from 1932-49. I did a lot of research on the web from several carb "experts" including great info from CarbKing's website. I wish CarbKing "the carb expert" would have just answered your question about the numbers A37 and H37, but I see he charges $10 each for that plus you have to ship them to him and pay for ship back. Is he on here to provide info to fellow members or not? My research took me hours and I have never owned a YF. No charge.
Anyway looks like the W1 stopped in 49 which would mean that the YF started in 1950 as CarbKing said. If the 37 means 1937 then I guess your carbs are W1. If your Carter Manual says 37 to 62, then there is a good possibility that info is correct, after all it's from Carter! SO... in that case they are YF's. (if the 37 means 1937) There is always conflicting info from experts because these parts go way back and the info is lost except from memory, urban legends, bar room talk, old books and some actual experience. Glad to hear they run, you have actually reached the bottom line. Lay some rubber.
You really should do more research.
I have posted many times that the letter/number combination with the identification number is the date code. The ones in this thread by the original poster were produced in 1957.
As to the charge for identifying carburetors; true to a certain extent, but not what you suggested. We have approximately 60,000 different carburetors identified on our website.
Some are too lazy to look; and once in a while, a truly unusual carb appears that is not on our website, and requires us to do the research. It is our business. Before we required the charge, we averaged about 50 calls a day from junk yard scrounges wanting to identify carbs so they could determine if they wished to buy them. This tied up the telephone lines preventing customers from getting through. You might be surprised at how many willingly pay to have something rare identified, and then it shows up on ebay.
And not all YF carburetors are universal replacement. MOST were used as original equipment. There are several hundred different in approximately 9 different sizes.
Jon.
