-All I know is that over 40 years ago my buddy needed them drilled. Opened the Mopar book to the page with the drawing and showed my Dad. He drilled them (probably on a Jig Borer) and all was good..........


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......