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 …