Performer RPM tuning moves the powerband up compared to a base Performer, running 1,500 to 6,500 rpm, which suits a Pontiac built with a cam and headers rather than a stock 350. Note the height: 7.450 in. at the center is a tall manifold, so hood and air cleaner clearance need checking before it is bolted down.

Edelbrock 7156-BP Performer RPM Manifold Specifications:

• Dual plane design, cast aluminum, black plasma finish.
• Fits Pontiac 326 through 455 V8 engines.
• 1,500 to 6,500 rpm operating range, square bore 4150 flange.
• Heights: 6.880 in. front, 7.450 in. center.
• Non-EGR casting. Gaskets are not included. Verify hood clearance before ordering.