Another Vacuum Question

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Jun 10, 2025 | 04:16 PM

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Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 769

Likes: 36

From: Goose Creek SC

Another Vacuum Question

first, thanks to all for the help you have been providing. Question: Where is the best location to connect the vacuum line for windshield wiper door and head light actuator vacuum? 1968, BB, ...163 intake manifold and Edelbrock 750 carb, power brakes, no vacuum advance on distributor.

Jun 10, 2025 | 04:34 PM

gbvette62

Race Director

Joined: Oct 2000

Posts: 12,640

Likes: 3,103

From: Shamong, NJ

The best place is probably where the factory attached the lines, to a vacuum fitting in the intake, between the carb and distributor. Depending on the year and options Chevrolet used fittings with one, two or three ports. Below are links to just some of the fittings used in 69.

https://www.volvette.com/EN91A.html

https://www.volvette.com/EN91B.html

https://www.volvette.com/EN90T.html

Jun 10, 2025 | 09:56 PM

68/BB

Thread Starter

Burning Brakes

Joined: Sep 2005

Posts: 769

Likes: 36

From: Goose Creek SC

Quote:

Originally Posted by gbvette62

This helps. My fitting in that location has a single connection which goes to the power brake. I guess I have to find one that has two connections so I can run one to the brake and one to the other circuit. I did not know there was such a thing. Thanks.

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