Close to half of the 20 multi-million-dollar ’67 L88s, plus a few ground-pounding 1968-’69 Corvettes, were at one place at one time: MCACN 2013. Bob Ashton has a reputation for assembling the quickest, fastest, rarest and most valuable muscle cars and Corvettes at his annual Muscle Car and Corvette Nationals (MCACN) in Chicago. This year he outdid himself. Working with Kevin Mackay at Corvette Repair, Valley Stream, NY, they assembled a mind-boggling number of L88 Corvettes, including seve...