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Registered
Join Date: May 2019
Location: Oklahoma 74432
Posts: 315
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Distributor Vacuum Lines
Can anyone tell me where the vacuum lines on a 1980 SC distributor attach to the throttle body.
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10-03-2019, 05:16 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,516
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Vacuum
Here is what you’re looking for
The idle vacuum comes from below the butterfly so when the motor is idling the vacuum is present to take idle to after top dead center. This vacuum comes off the fear side of the throttle body, in blue The idle hose plugs into the vacuum pod on the forward side. The high speed vacuum comes off the front of the TB and is above the butterfly in red As the throttle opens and more air is necessary to run the engine the vacuum is drawn from any place it can get it, hence the vacuum to the dist. Pod to advance the spark. Bruce  
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10-04-2019, 06:11 AM
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