http://www.ebay.com/itm/1969-Chevrolet-Camaro-Hardtop-Pace-Car-/162510444132?hash=item25d6609664:g:fn4AAOSwaeRZEmTK&vxp=mtr
Quoteis this a real pace car?
No, Z10's weren't pace cars. Read THIS (http://www.camaros.org/69pacer.shtml#Z10) for more info.
Ed
Sounds like an honest car. #'s look mostly reasonable on the car.
VIN, tag, and engine date look good. Axle date is early but possible. 186 heads?? Car was restored 28 years ago, things were different then on what parts were used / replaced.