Look at where the posts sit on Hammered pics top chevron S-1 versus the other 2.. http://john.my67.net/partstrivia.htm The bottom two are not on the edge. The top chevron will cause a fitment problem.
And to answer question 2 in the trivia, fender gussets..
1967 Camaro gussets.
Find a 67 Camaro and you will see what the "extra" hole is for.
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.
