By 1976, the Chevrolet Corvette, once “America’s Sports Car,” had been well and truly neutered. The C3 Corvette launched in 1968 had started off well enough, with svelte chrome bumpers, curvaceous styling borrowed from 1965’s Mako Shark II concept, and a standard 300-hp, 327-cubic-inch V-8 engine. GM’s engineers had even developed a “for racing only” L88 engine: a 430-hp, 427-cubic-inch V-8 that many say was closer to a 500-hp, 500-lb-ft monster in reality. Alas, the times were changing and as the U.S. rolled into the 1970s, the performance car seemed to suddenly be under threat. Emissions regulations began to become more strenuous, causing automakers to detune their fire-breathing performance motors with weak compression ratios and milder cams and carburetors. Oil shortages were leading to high gas prices at the pump and Corvette buyers themselves were aging, resulting in increased demands for comfort and, for the first time ever, more automatic-transmission Corvettes being sold ...