Re: Holley 3310 date code
Joe;
The 3310 was originally installed on the `65 Chevelle Z16, but it also became an over-the-counter universal replacement carb as well, and is still produced by Holley today, although the current version has little in common with the original version save for the LIST number.
As far as value goes, not really valuable from a restoration standpoint, but (IMHO) they are one of the best, most versatile carbs Holley ever produced, and make fantastic street performance and street/strip carbs, so in that regards they definitely have a solid value.
Hope that helps.
Eric
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