American muscle cars didn’t die from a single law. Insurance surcharges, emissions rules that cut a 450-horsepower Chevelle engine down to 200 horsepower, and the 1973 oil crisis all hit within a few years of each other. The 1980s comeback cars, like the 302 Mustang and third-gen Camaro, were built for survival, not revival. Read on for how the technology that actually solved the problem didn’t show up for another fifteen years, and why today’s 700-horsepower factory V8s owe more to those lean years than most enthusiasts realize.