Edelbrock part #2893 Super Victor 440 Max Wedge intake manifold is designed for 413-440-500+ RB with Max Wedge heads and 4500 Series carburetors. This intake manifold is designed to fit 1962-64 Max Wedge heads or the Edelbrock Victor Max Wedge cylinder heads #77939 and #77949 for maximum performance. For competition and high-rpm Chrysler V8's, the Super Victor 440 has an all-new runner design that delivers maximum power from 3500 to 8000 rpm in drag race applications. The manifold port exits are CNC machined to 1.30\" x 2.58\". Edelbrock part #7798 valley cover is required when used with Edelbrock Victor Series cylinder heads.