73 Buick Centurion Cast Iron Intake Manifold

73 Buick

Member
Hi Team, Im just putting the 455 back in the car but note there are 2 front and 2 back holes on the intake manifold. Can anyone please tell me if there are plugs to block these off or should these have hoses connected? If the klatter from where

Appreciate your advice.

Cheers

Jim
Perth Australia
 
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