I have a 66 gto with what I belive to be a 389. The problem is I belive the intake is from an earlier Pontiac. I can not find a casting # on the intake. There is what I belive to be a date code between the carb and the sending unit boss. It looks to be O274. Does this mean the intake was cast in 1964?
[This message has been edited by Ggracie (edited 10-29-2001).]
[This message has been edited by Ggracie (edited 10-29-2001).]
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