I tried to identify the carburetor and I can get close but not close enough. The "1705" stamped part number indicates that its from a 1976 to 1979 production era. The next number is a 4 which should indicate the year of manufacture but that doesn't match the first part of the part number. Any carburetor made in 1974 would have a "704" starting off the stamped number.
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What's the point of writing a response if its only going to get deleted.