69 Holley Carbs - The Supercar Registry

12-09-2002, 01:26 AM

Keith Tedford Keith Tedford is offline

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Re: 69 Holley Carbs

I think you will find that the carbs on the Z/28, L72, and L78 engines all had vacuum secondaries. The double pumper carbs were just starting to come out around this time. Some of the ZL1 cars were shipped with the vacuum secondary carbs while the proper double pumper carbs were shipped to the dealers later when GM got the carbs from Holley.

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