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Not a very helpful comment. Do the carburetors have numbers on them? Do you actually know anything about an Edelbrock upgrade? Does anyone else in the forum know about this upgrade? Was it a popular thing to do?

Thank you. Just figured out that our 1965 Bamboo Yellow Riviera GS (yes, it is, matching numbers everwhere!) has Edelbrock 4 barrel carbs. Was this considered a positive upgrade to the Carters or a mistake? I've read that the Carters and the Edelbrocks have interchangeable parts and the bodies are both made by Weber. Sounds like Edelbrock is a modern Carter is disguise. What love to know what the word about this "upgrade" is! Thank you very much.

I would like to know what manufacturer made the OEM 4 barrel carburetors that came originally on the 1965 Buick Riviera Gran Sport. Was there a popular upgrade to these carburetors? Inquiring minds want to know! Thank you.