Shelby American is to Ford as Callaway is to GM. For 35 years, Callaway has been working on making fast GM cars faster – particularly the Corvette – and does so with such quality that warranties remain intact. And if you wanted to learn more about Callaway Cars and what they have done to the Corvette over the years, it might be worth checking out the newly opened Callaway Exhibit at the National Corvette Museum. It will remain open until February of next year. We’ve seen some handiwork from Callaway Cars as recent as this year. It just so happens that this year marks the 35th anniversary of th…