Think the change over kits contained a new tag and pin. Only reason I know about it, is that I most always notice any kind of changes to parts. If I don't know why I keep that information in back of mind until a answer pops up. Will try to post some more detailed info if I get it rounded up. I'm not very organized, will make a note working on a carburetor about the size of parts then forget were its at. Some carburetors will be all mixed up with parts after so many years have past. Found a few partial NOS change over kits in the past but never a complete one. Probably the carburetor you have was changed if it has a passage plug, but they never bothered to change the tag. Have found some that a high speed adjusting screw and nut was just added. From what I remember with the change, idle jet stayed the same, main jet, nozzle jet and the airbleed size was changed. One change over was made for the 400 carbs also. Don't have a 361525R91 carb. at this time to double check memory, Do have a 400 gas R91 but a little different.
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Today's Featured Article - Uncle Cecil's Super A Lives Again - by Mike Purcell. A week or so out of most of my childhood summers was often spent with my Uncle Cecil and Aunt Sissie in the small East Texas town of Maydelle on their 80 acre farm. Some of my fondest memories of these visits are those of learning to drive a tractor at the helm of Uncle Cecil’s 1948 Farmall Super A. Uncle Cecil was the second owner of this wonderful little tractor, but it was almost as though he had adopted an infant. The original owner was a man from Minnesota who bought her from a local dea
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