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Thread: Manifold Vacuum

  1. #1

    Manifold Vacuum

    Hello All,
    I have a '39 special with the standard 248 cu.in engine. Could anyone tell me what the manifold vaccum should be? I am getting around 18 in.
    Thanks in advance.

    Gary

  2. #2
    Join Date
    Dec 2005
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    18 is fine.
    1953 Special Riviera 45R
    1965 Skylark Hardtop 300-4V
    1965 Mustang (in the family since 1968)
    1965 Corvair Monza Convertible
    1965 Dodge Dart 170 Wagon
    1974 Pontiac Firebird Esprit

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