Opinion on '69 Z/28 data Plate

[jerry455]

Hello Yenko.Net members & Happy Father's Day to all that it applies!
I wanted to post a few pics of the data plate from my brother's '69 Z/28 to see thoughts on authenticity?
It's a clean car, pretty cool color combo. Has DZ motor, but thinking not original to car.
Will post pics of stamping on engine pad soon, plus the vin stamp on trans. I still need to look for rear axle stamping, and check the distributor number etc.
The carb looks right, with the thinner base-plate.
appreciate any input.
Cheers-
Jerry