65GS.com - Buick Gran Sport Enthusiasts!
General Discussion => Q & A => Topic started by: CRH on April 03, 2010, 10:51:29 AM
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I am embarrassed to ask, but my newly purchased '65 GS post has a 4GC instead of a Carter, and I was wondering if the GS ever came from the factory that way. The car is mostly original, with the original numbers-matching engine. And the carb linkage and kickdown is all installed well. But it seems like it should be an AFB, right??
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Yes, a carter AFB #3921 should be on it. Easy to find, they were on many 401/automatic applications in 1965.
The Rochester 4-jet was used on some models thru 1966.
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Thanks for the answer! I'll get me a Carter.
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To answer your question, as I remember it,,,,, :icon_biggrin:the qjet did not appear untill the 1966 model came on.....
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my gs had a rochester on it also
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There was an old style Rochester 4-jet used until 1966, but not on the GS. It had a cast-iron base. front and rear barrels were close to the same size.
The Rochester Q-jet first appeared on 1966 Buicks. It's the well-known small primary/huge secondary style. It was used on the 66 Wildcat GS, Riviera GS, and only 132 Skylark GS's with the L76 engine option. :icon_biggrin: :glasses9: