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Old 06-05-2004, 06:38 PM
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Vacuum Advance

I am running a Chev 283 with an Edelbrock Perfomer manifold and an Edelbrock 1405 carburetor. I am currently running the vacuum advance off directly off of the manifold which gives me full advance at idle. 10 degrees initial plus about 20 more for the vacuum.
Some folks have been telling me that the timed port on the Edelbrock carburetor is where I should have the vacuum advance connected for normal steet driving. Any thoughts on which is best for street driving, mileage, performance?
Any disadvantages to either connection.
The car is a '34 Ford with a mild Engle cam and a 700r4 transmission, 3:55 rear end.
Thanks.

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Old 06-05-2004, 06:42 PM
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You will get smoother idle, better low end throttle response and better gas milage on a modified engine, if you use direct manifold vac to the distrib. This has been discussed several times.
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Old 06-05-2004, 07:41 PM
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Thanks CRMAN. I've always run my cars this way, but the subject came up a few days ago with some disagreements.
Sorry about posting about a previously discussed subject. I'm a new guy here and just learning how to use the board. I'll get there.

Chev283
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