[mockingbird812]

This is the Billigen car. One of two known to exist. This is the way Yenko ordered them from the factory prior to transplanting in the 427 engine. (427 was not part of the COPO ordering from the factory in '68). But other hi po COPO items (special sway bars) were available in '68. I am a novice - others will chime in. Tom passed away a few years ago and his widow owns the car now. Outstanding restoration!