Did find a pic in the assembly manual of the 455HO callout location on chrome nose 71's.
Looks like .70" horizontal from the parking lamps. Just a guess, but it looks like they may me using the second wheel well molding screw hole from the bottom as a reference on where to line it vertically?
Mike mentioned that his T had the holes drilled in the fenders even though his car was ordered without the wheel well molding option. Noticed the same on mine.