Proflow's AirDual intake manifold is designed for street 253-304-308 c.i.d. Holden Commodore V8 engines. This intake manifold is a dual-plane design that is tuned for excellent throttle response from idle to 5500 RPM, aiding in fuel vaporisation and increasing volumetric efficiency.

• Designed to fit both early and late cylinder head bolt hole patterns
• Pilot holes have been drilled on each side of the exhaust crossover
• Accepts both square-bore and spread-bore carbs
• Fits Red/Blue/Black engines
• Does not have a provision for external heat crossover
• Available in natural or black powdercoated cast-aluminium finishes
• Includes square bore adaptor plate