American Classix is Alan Stanton. He has a nice website:
www.americanclassix.net.
There's no mention on the website about expertise authenticating Camaros but he has several classic and musclecars listed for sale.
He has a nice 68 Camaro for sale. Here are a couple of pics of that car's "numbers". I'll let you make your own conclusions as to integrity and/or restoration skills:
I'm with Hylton on this one: "Bullsh!t".