There used to be a debate about the number of Yenko Camaros, 198 or 201, a result of some errors in the hand written sheets from Yenko, but I think the debate is settled at 198. As for Yenko Chevelle, I think the number is 99.
I did not do any research, just passing on info from guys who did do it. (and continue to) I just know that Berger found out early, about Yenko's clandestine COPO deal with Chevy, and started buying them. (Prior to 69, all the conversions were actually transplants, and Yenko, Berger, Nickey, Dana and Baldwin-Motion are among the most well known.)
Another dealer, Jack Douglass, in Chicago, who was part of the Yenko dealer network, also found out about it, and started ordering COPOs and then tried to buy a bunch of stripes and badges from Yenko's Performance catalog. When Don Yenko found out about it, he jumped in his plane, and flew to Chicago to have a toe-to-toe with Jack Douglass. They ended up agreeing that Douglass would pay Yenko a royalty on all COPOs he converted (rather than buy already-converted ones from Yenko. There is an ongoing debate amongst the Yenko guys as to whether the Douglass-Yenkos are legitimate Yenkos. They are usually designated with an asterisk, or differentiated by referencing Cannsonsburg Yenkos, or Douglass Yenkos. BTW the 198 figure is Cannonsburg Yenkos.
If you go over to Yenko.net, the info about each car is available; original dealer, color, certain options, etc. but it does not tally the number of found cars.
The pool is almost dried up, but once or twice a year, another COPO is found.
