SPECIFICATIONS: Cylinder Head Type: Oval Port- Small Emission: Without EGR Engine Make/Size: Chevy Big Block (396-502) Number of Carbs: One Position: N/A RPM Range: Idle -5500 Usage: Street/Hi-Performance FEATURES: For Idle to 5500 RPM Street-Driven Performance Dual-Plane Low-Rise Intake w/180 Deg. Firing Order Patented Runner Design Ensures Broad Torque Curve Excellent Throttle Response and Mid-Range Power 50-State Street Legal if Correct Carburetor Used Package Contects: 1* Intake manifold UPC Does not apply Brand Deepmotor Type Intake Manifold Material Aluminum Manufacturer Part Number DM-3712-BK Color Black .