Only 65 Came With The 400 Ram Air Engine The least popular engine in the 1967 Pontiac Firebird was the one with the highest output. The 400 Ram Air was actually rated at the same horsepower as the ...
The 1967 Firebird was also available with a 326 or 400 cubic inch V8. Each could be purchased with the L67 Ram Air intake package, which when placed atop the 400 lifted the redline to an ear ...