[Stefano]

Rob,
We have found eight Douglass Yenkos, a few of these are needing restoration.

The quote from September of 1969 would be fresh in his mind, as opposed to an interview in 1987. Don's numbers happen to be very close to Jack's. If Don wanted to embelish he could have done better than 22 as Douglass Chevrolet out sold Yenko Chevrolet in total retail volume by a substantial margin.

What estate Document pegs Yenko Deuce Production at 350 or even Camaros at 500. These would be very significant documents if they indeed do exist.

I would agree with you that Don was known for invoking a bit of creative licence to obtain a desired outcome.