Speedmaster 1-147-033 SBC 350 MidRise Dual Plane Intake Manifold Black

The Speedmaster 1-147-033 is a high-performance MidRise dual plane intake manifold designed for small block Chevy 350 engines. This aluminum manifold delivers exceptional power and torque characteristics that rival single plane racing intakes, making it an ideal choice for street performance applications without pollution controls.

Key Features:

• Dual plane design optimizes mid-range torque and top-end horsepower
• MidRise height sits approximately 5/8" taller than LowRise series for improved airflow
• Square bore carburetor flange accommodates standard four-barrel carburetors
• Integrated nitrous bosses for easy nitrous oxide system installation
• Four corner water ports ensure proper coolant circulation
• Dual distributor hold-down provisions for secure mounting
• Durable black aluminum finish provides corrosion resistance and aggressive styling

Dyno testing has proven this MidRise manifold produces power and torque numbers comparable to high-end racing intake manifolds on medium horsepower builds, while maintaining excellent street manners. The dual plane configuration provides superior throttle response and drivability compared to single plane designs, making it perfect for street/strip applications where versatility matters.