Holley 300-277 4150 Single Plane Carburetted Intake Manifold

Compatible with Ford 289-347 Small Block with 8.2" Deck Height;

This aluminum hi-rise single plane intake is designed to provide a broad 2500-7500 RPM powerband for high-performance street/strip 289-347 cid engine applications to a maximum engine speed of 7500 RPM. It has a 4150 style square bore carburetor mounting pattern. This intake manifold is designed to accept most stock hardware and accessory brackets, but offer performance features like better plenum and runner geometry for improved charge airflow. The isolated design of the air/fuel passages helps to increase charge air density and performance. With a port size of 1.82 high x 1.04 wide, there is extra material to port to 2.00" height x 1.20" wide. 1/8, 1/4 and 3/8 NPT accessory ports are under the throttle body flange.;