Manifold and ported vacuum

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Ricko1966

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kansas
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Rick
Truck Year
1975
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c20
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350
13matsc said:
Yes, of course. Im talking about which of the ports people actually use. I’ve never seen one in real life use manifold vacuum, but alot of guys online sure does.
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Damn near every car made in real life, prior to emissions concerns ran on manifold vacuum. Pics from Edelbrock installation guide.
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