Aluminum Intakes Cast Iron Maifold
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Pontiac's standard-production, cast-iron, four-barrel intake manifold is a formidable performer in myriad applications. When compared to the larger-diameter runners of the division's high-performance, cast-aluminum versions, the cast-iron piece doesn't flow as well in stock form, but it can be modified to flow as well as, or even slightly better than, its aluminum counterparts. View Related Article
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