Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Black] Speedmaster rear calipers are some

Speedmaster rear calipers are some of the strongest on the market

Whether you're assembling a daily driver

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Pontiac 326 350 389 400 421 428 455 HiRise Aluminum Intake Manifold [Black] Speedmaster rear calipers are someThis manifold is a single plane manifold that will fit under all Pontiac hoods including the Trans Am "Shaker" hood. It accepts a stock Quadrajet carb but we also include an adapter plate for standard square bore carbs. This manifold is designed to work with cylinder heads up to 300 CFM. It is also available machined for injectors.