[William]

And the work is boooooring. A friend owned a dealership, sold it in the '80s. We went through thousands of file folders with shipper's copies for Bel Air wagons, trucks, Chevelle sedans and a few Camaros, very few Corvettes. Chevy built around 2,000,000 vehicles in 1969 - imagine keeping track of that.

ZL1 VINs are known because a Chevy exec kept a hand-written file. Much of the Yenko documentation to date was also handwritten. Just recently some shipper's copies have surfaced.