What do the numbers stamped in the corner stand for? Some have a 70, some have 72, some have 68 etc. Is this related to the jet size? Even though it seems most of the factory jets are 55 - 68 range. I haven't really seen too many factory jets 70 and above in the carbs I'm playing with and a lot of these clusters have 70 or 72 stamped. Over the last few years I've acquired about 20 Rochester 2G carbs. Some just plain old 2bbl and some tripowers.
Thanks
Donald
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