Clear up something in the original trans-am cars?

Prior to 1967, Chevrolet didn't have much presence. The v8 cars under the 5 liter limit were 273 mopars, and 289 mustangs. I don't remember who won in 66. In 67 the Camaro showed up, and got their *** kicked with their 283, the corporate put together the 327 block with a 283 crank, and Shazam! Z28! Winner!
In 68, with the requirement of a FACTORY five liter (no destroking allowed, yet) the Z28s kicked *** again. Mopar knew the 273 was hopelessly uncompetitive, so they didnt try, Ford tried a tunnel port head on the 289, that was a complete failure.
69, still no destroking allowed, so Ford built a street boss 302 to be competitive, but i think Mark Donohues sunoco camaro still won.
1970, destroking allowed, Mopar late to the party, is uncompetitive, Parnell Jones boss 302 mustang is champ.
1971l AMC goes all out with the Javelin, I think I remember gm and Ford pulling major sponsorship, Javelin win kinda by default.
After AMC won, nobody cared anymore...