Aeroflow Performance Street Dual Plane Intake Manifold Suitable for Small Block Chevy 262-400, Black Finish. 1500 – 6500 RPM, Square Bore Carburettor Pad, Non-EGR. Aeroflow has become synonymous with premium quality performance products. Aeroflow’s objective has been to incorporate state-of-the-art manufacturing, aerospace quality materials and rigid quality controls to produce quality performance products at extraordinary value. Aeroflow has taken its forward-thinking knowledge to the street, manufacturing a wide range of race quality products to improve street performance and dependability. Get the maximum power from your carburetted engine with this Street Small Block Chevy carburetted cast intake manifold. This dual-plane intake manifold is designed to keep your air and fuel distribution going into the engine at a steady and even flow for maximum performance and efficiency. The carburettor-mounting pad is designed to accept aftermarket square-bore carburettors with either manual or electric choke options available on today’s market. Specifically designed for 262-400 cubic inch small-block Chevy engines operating in the 1500 to 6500 rpm range. In most cases, these manifolds accept late model water necks, air conditioning, alternator and H. Street Dual Plane Intake Manifold. Square bore carburettor pad. RPM operating range: 1500 to 6500. Overall height (Carb pad to bottom of manifold): 115mm. Port Size: 1.16″ x 1.70″. Intake manifold gasket, Fel Pro 1205. 5/16-18 carburettor studs (x4). 5/16-18 mounting holes (x2). 3/8-16 distributor hold down mounting hole (x1). 3/8-16 accessory mounting holes (x3). 1/2 NPT ports (x2). 3/8 NPT ports (x2). Suitable for Small Block Chevy 262-400 Cubic Inch Engines.