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 ...

Pontiac’s 1968 Firebird Ram Air I and Ram Air II engines sit at the heart of one of muscle history’s sharpest debates. Both packages turned a stylish pony car into a serious street and strip weapon, ...

In 1970, the GTO Ram Air IV was the most performant midsize Pontiac. However, the division was no longer required to use engines 400-cubic-inch or smaller anymore. It was the high-horse, high-buck, ...

As the horsepower war between automakers in the 1960s forged the Muscle Car era, the need to deliver increased fuel to V8 combustion chambers became evident to engine designers. But without enough ...