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Should vacuum be on spark adv all time on 1979 5.0 engine?

Anonymous

∙ 16y ago

Updated: 10/21/2022

No it should not, It is now hooked to direct vacuum witch is wrong.

It should be hooked to ported vacuum. That means that it only has vacuum when you speed the engine up and not when it is idleing.

Wiki User

∙ 16y ago

What else can I help you with?

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