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Discussion Starter · #1 ·
I've got a old 3310 no dash 780 holley, EH code but the date code is 8 B 3 so how do u figure out the date?
8 = 1968?
B = ???
3 = 3rd week of B? thanks. I just picked up a 1968 dated 163 intake, thinking of pairing these up if the dates are both 1968. jim
 

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Discussion Starter · #3 ·
found some info on the web. A is Nov. B is December so looks like 68 Dec 3rd week. migjt be a oem carb not a over the counter carb with this date code. jim
 

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3310 was only used as a factory installed carb on the 1965 Z16 Chevelles, as far as I know. So a Dec. 1968 date code would be an over the counter speed part, either from Chev. or from Holley directly.
 
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Discussion Starter · #6 ·
thanks. I'm going to bolt it on my latest intake, intake was cast I so sept 68, carb is Dec 68. more garage art. jim
 
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