Power for the Ram Air package was the same as the conventional 400 HO, but peaked at 5,200 rpm. A "Ram Air" option was also available, providing functional hood scoops, higher flow heads with stronger valve springs, and a hotter camshaft. All 1967–1968 400 CI engines had throttle restrictors that blocked the carburetors' secondaries from fully opening.
Most buyers opted for one of three V8s: the 326 cu in (5.3 L) with a two-barrel carburetor producing 250 hp (186 kW) the four-barrel "HO" (high output) 326, producing 285 hp (213 kW) or the 325 hp (242 kW) 400 cu in (6.6 L) from the GTO. The "Sprint" model six came with a four-barrel carburetor, developing 215 hp (160 kW). Based on the architecture of the standardĬhevrolet 230 cu in (3.8 L) inline-six, it was fitted with a one-barrel carburetor and rated at 165 hp (123 kW). The 1967 base model Firebird came equipped with the Pontiac 230 cu in (3.8 L) SOHC inline-six. However, GM feared this would cut into Chevrolet Corvette sales, and gave Pontiac a piece of the " pony car" market through sharing the F-body platform with Chevrolet. Originally, the car was a "consolation prize" for Pontiac, which had desired to produce a two-seat sports car based on its original Banshee concept car. Both a two-door hardtop and a convertible were offered through the 1969 model year. The Firebird's rear "slit" taillights were inspired by the 1966–1967 Pontiac GTO. Announcing a Pontiac styling trend, the Firebird's bumpers were integrated into the design of the front end, giving it a more streamlined look than the Camaro. The first generation Firebird had characteristic Coke bottle styling shared with its cousin, the Chevrolet Camaro. See also: GM F platform § First Generation, 1967–1969
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