Thread: Running engine with intake removed...
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  #33  
Old 09-01-2021, 03:57 PM
Felching Felching is offline
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Join Date: Nov 2020
Posts: 188
Quote:
Originally Posted by vwnate1 View Post
There's always a vacuum in the intake manifold because the cylinders are drawing ir air

What you said is ONLY true if there is a restriction to airflow.
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