Anyone know of this L78 Nova?

[Bahnz70]

Well, must not. I am hoping this thing is the real deal, it was definitely raced back in the day, retains its original BT rear but holds a 4.56 gear now. Motor is a CE block with aluminum heads and they still had the late september 291 heads as well, the 4557 carb, correct intake, crank, rods, radiatior, etc. A lot of things are lining up to say its true. It was crandberry red with black buckets, 4spd car. It has the single 'A' on the trim tag - does that mean no exterior trim? Manual steering box. Anything else I can look for on this car - yes it has the 3/8 fuel line. Was also wanting some opinions on going to original or 'day 2' on this thing.....thoughts?
Thanks
mike