In the golden era of American muscle, bold ideas flowed as freely as gasoline. But not every high-horsepower dream made it out of the concept stage. Beneath the headlines dominated by GTOs, Mustangs, ...

RETRO RESPIRATOR Summit Racing Equipment • 800-230-3030 • summitracing.com • $166.46 (16-inch round) or $206.96 (14-inch dual snorkel) These vintage-style air cleaners for General Motors LS-series V-8 ...