I would greatly appreciate your help. I am researching a Nova. It is an unusal combination.

Here are the particulars:
4th week Dec 1968 Willow Run Car
L78
M40
Power Steering
Power Disc Brakes
Multi leaf spring
12 Bolt Posi (ratio unknown)
Column Shift
Bench Seat
Floor mats
AM Radio
The car is complete numbers/date code match. 55,716 actual miles. The body is straight with rust in the ususal places. Cortez silver with a plain black interior. SS Rocker trim emblems and hood. Currently it has a small block installed but the big block is all there including the holley carb (list # 3310) however no air cleaner. Any information you might be able to provide would be greatly appreciated. A week doesn't go by with out someone wanting to buy the car. Thank you.
Sincerely
Dale