Good cylinder heads are necessary to the production of serious horsepower, but what exactly constitutes a "good" cylinder head? Typically, we identify them with big, impressive flow numbers.
Big-cube performance is very popular with hobbyists, and for Pontiacs that usually includes a 400 or 455ci engine. When attempting to extract maximum performance from such combinations, many owners ...
Flow is controlled by either throttling or diverting it. Throttling involves reducing orifice size until all of the flow cannot pass through the orifice; bypassing involves routing part of the flow ...
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