Thread: 1966 Inline 6 250 ci. Nightmare!
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Old 08-14-2020, 03:01 PM   #12
hairball
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Join Date: Nov 2018
Location: Durango Colo.
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Re: 1966 Inline 6 250 ci. Nightmare!
Sounds like a vacuum leak. Take some Brake Clean and spray around the intake gasket and note any change in RPM.
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