Well, I have searched the web, this forum, and all over these carbs & I am not getting too far. I have a set of mystery year carbs I plan to rebuild, but I am not sure what year they are, so not sure what rebuild kits to get. I know the obvious, that they are 38's, but the only numbers I can find anywhere are on the body near the float bowls that read what looks like "1E1-00", but the 1's could be poor 7's, hard to say really. From these numbers though, I can't seem to locate any hard info other than one site that was questionable that said they might be 76's. Here are a few pics, if anyone can help a rookie out & shed some light, it would be greatly appreciated. Thanks.