The Pontiac Firebird Formula ... the 1970 Formula 400 came standard with a 400 cubic-inch, 330-horsepower V8, while the optional 345-horsepower Ram Air III V8 engine (standard in the Trans Am ...

The Pontiac Firebird ... but a Formula 400 "represented 95 percent of the performance of a Trans Am at almost a 25 percent discount." There was also an option to add Ram Air to the Formula 400 ...