Nice car, and I'm in no way doubting it started life as a Z. Very nice original interior, clean underside, etc...looks quite nice. Nevertheless, I'm surprised Jerry would be willing to certify a car as a Z/28 without docs or original drivetrain. Looks like he was basing the certification on the original 12-bolt and other clues on the car.
I guess it never occurred to me that he would certify a Camaro performance option without the original engine or docs. Maybe docs exist that the seller neglected to mention?
Link to 1968 Z28 auction
124378N413097