http://www.chevelles.com/forums/pict…&pictureid=490. Herbie ‘67 SS Chevelle 460″ XE284, 9.97:1, Turbo400, 3.42 12bolt. Holley 770SA, RPM AirGap, 2500 Coan. hpsherlin. View Public Profile · Find all posts by hpsherlin. Thread Tools …