Technician a Says an Intake Manifold That Delivers Both Air

Technician A says an intake manifold that delivers both air and fuel (carburetor or TBI) is designed to cause turbulence so that the air and fuel mix while they are being delivered to the cylinders. Technician B says in an air only type manifold (PFI) the length of the runners is designed to achieve the best performance during a particular range of engine speeds. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Correct Answer:

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