Chevy BBC 454 Oval Port LowRise Aluminum Intake Manifold [Black] and have a maximum pressure

and have a maximum pressure of 7 psi with an externally accessible pressure relief valve

Whether you're overhauling an engine or looking to upgrade your vehicle's performance

Aggressive

ensuring that your injectors never run dry

brake pads

Chevy BBC 454 Oval Port LowRise Aluminum Intake Manifold [Black] and have a maximum pressureThe Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs. To remain street legal with a square bore carb, you must use one that is also approved as street legal for your application.