The connecting tubes between the base of the carburetor and the port openings to the intake valve or intake ports. The air-fuel mixture travels from the throttle body into a chamber called the plenum which feeds individual tubes (called runners) which lead to the individual intake port. Its purpose is to transfer the air-fuel mixture to each cylinder. Also called "inlet pipe." Also see ram intake manifold.
The passages that direct the intake air from the throttle body into the intake ports of the cylinder head.
A portion of the engine that distributes the working fluid to intake valves for combustion in the engine's cylinders.