1969 Yenko Chevelle

[blu65vet]

I am scheduled to examine a restored 1969 Yenko Chevelle on Friday, 16 Aug 2002. I am being asked to verify if it is in fact a true Yenko or a clone. There is supposed to be paperwork proof of it's originality. I am a Corvette
guy with limited background on Yenko's. I am comfortable with documenting a normal 1969 Chevelle but the Yenko part is what I need. What would I look for in original paper work linking the car to Yenko? Proof positive sort of thing since documents can be forged. I will look for a block casting date ending in "8" or "9".
Three digit date code on the holley ending in same numerals. How many automatics were made? Is there a web site with this stuff posted. If car is true Yenko what is value range? $50K to $75K or $30k to $50K ?
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