The 1967 Pontiac GTO gave buyers a rare choice between two distinct 400 cubic inch performance paths, the 400 HO and the Ram Air package. Each engine delivered serious speed, but they did it with ...

351 Cleveland engines in the four basic configurations: A. 2 barrel; B. 4-barrel; C. Cobra Jet; D. HO or Boss 351. It seems that in the world of high-performance engines, the 351 Cleveland has been ...