Assault Racing Products PC4026 Small Block Ford Dual Plane High Rise Satin Aluminum Intake 1500-6500 RPM SBF 260 289 302 RPM Range: 1500 - 6500 Dual Plane High Rise - 260-302 Manifold Height: 4.12 in Square bore carb bolt pattern for the Holley 4150/4160 style carburetor Open air gap under plenum for cooler fuel charge