From the paint code you can tell if it was painted another color.

You need to research the National Corvette Restoration Society.  You can have the car judged by experts at a regional event.  There are points counted toward originality and condition and also special "Bowtie" certification for unrestored Corvettes.  There is "Bloomington Gold" survivor certification unrelated to NCRS.  I'm not sure how that works, but its supposedly a really big deal to get that.

In order for a Corvette to be "certified" as a "Survivor", it would need to be entered, judged, and accepted as such by Bloomington Gold.(The term "Survivor" is a Bloomington Gold Trademark)
You could also enter it in an NCRS meet, and have it judged there. NCRS has the "Bowtie" award that corresponds with the "Survivor" award, as it is based solely on originality, and if the car would be useful in furthering the education of our hobby.
To do that, you would need to be an NCRS member.

NCRS and Bloomington are two different entities, but both are committed to the preservation of all Corvettes, and reward them according to originality.

You might try to contact a local NCRS Chapter in your area, and ask if some of the folks would be willing to look your car over, and give an honest evaluation of it's potential.
One thing you do NOT want to do at this point is to change anything, or do any major cleaning/detailing of the car, if you are planning to have it "Certified" with either NCRS or Bloomington. You could very well unknowingly do harm to surface finishes, and markings that may help determine the true originality of the car.

All that being said...it's your car, and you can do whatever you wish with it.
If you believe the car is that original, I would implore you to keep it that way...at least until proven that it is not as original as thought. Others will disagree, and that's fine...there's room in the hobby for all of us.
Good luck with the Corvette, and glad you found one of the rarest Corvettes ever made, and I really hope it can be verified...I really do.

(Am I the only one that noticed he's talking about an LS6?!?!?)

I noticed it Joel but was waiting to see your expert opinion. After all, you are a judge and who better to chime in on this. Appreciate you thoughts.

Scott

Yeah...now if it could only be a ZR2...WOW!

Thanks folks, I have contacted bloomington and there going to get back with me. All the #s match. Even the original keys, storage box interior paint, The windows are even original, all of them. and every thing works! I will let you know the outcome

WoW, Hells6, that is totally awesome!, Congrads on such a find!! Please do keep us posted on the outcome, and by the way, welcome to the group too!

http://www.ncrs.org/