[Lynn]

That car reminds me of the 68 Yellow & Black RS Z/28 with custom interior, 4 wheel disc, 4.10 posi, cross ram, cowl ducted air cleaner, transistor ignition, concours quality car Chevy brought to Car & Driver to do battle the "tunnel port" 302 Mustang in 1968.

I am sure both of those cars contributed to the myth of the factory cross ram Z/28. Both were prepped by GM. I know the Car & Driver article makes it clear that Ford and Chevy could prep the cars any way they wanted as long as they used "any factory installed or dealer available part" that was homologated. Of course, as it turned out, the tunnel port 302 was never even installed in a production car. Ford brought a gun to the knife fight and still lost.