Quote:
Originally Posted by Fred A
It is hard to imagine why the Ford engineers changed the shape of the intake. The offset angle and the vacuum tap relocation were needed, but the flat top is a wonder to me. Could the B intake flow better than a bored A? Interested: Fred A
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Fred, free tip here!!! The inside of the B intake is larger, not just the runner from the flange but all the way to the intake ports on the block. The flat top on the B intake better breaks up and distributes the mix to all cylinders rather than mostly to the front two cylinders. The flat top B manifold is one of the reasons that the B engines run smoother, Better fuel distribution to all of the cylinders.