This 1969 Chevelle looks like a clean pro-touring build until you notice the pair of 76mm turbochargers feeding an all-aluminum 540-cubic-inch big block. Underneath sits a Roadster Shop chassis and Detroit Speed suspension, because a fifty-six-year-old body shell cannot handle this kind of power on factory bones. The combination points to four figures of horsepower in a car that still wears its original silhouette. Read on to find out what it takes to build one.