Performer RPM are dual-plane, high-rise intakes with 180° firing order to produce incredible top-end horsepower while retaining good throttle response. Their larger plenums and runners match the free-flowing exhaust, high-lift cams and other modifications of a high output engine. They are intended for high-performance street or competition engines that run up to 6500 rpm. They are not for emissions equipped engines. Edelbrock's Performer RPM gives you the ultimate in street high-performance.

• Designed for street 396-502 Big Block Chevrolet with high-performance rectangular port cylinder heads.
• This manifold offers the latest technology in dual-plane high rise design and builds outstanding horsepower while maintaining good torque and driveability.
• No provisions for exhaust heated chokes.
• Accepts late-model waterneck, air-conditioning, alternator and HEI equipment.
• Will not fit under stock hood of Corvette, 1965-67 Chevelle, or 1967-81