Do the Mustang and Camaro have technical parity?

[V8 Fireworks]

A test Ford Supercars engine map has shown its worth if results from practice at the Ned Whisky Tasmania SuperSprint are anything to go by. Speedcafe understands that three Mustangs used the test map, and that they so happened to be the fastest three Mustangs in Practice 1.

https://www.speedcafe.com/2023/05/21...t-in-tasmania/

Furthermore, a circa $40m AVL dynamometer (as also used by the top Formula One teams) may provide clearer answers:

It was long thought that Australia was without an AVL transient dyno. That is, until the [ATCC] industry recently became aware of one housed at Melbourne engineering firm DS International. There is sudden confidence the quipment will be up to the task.

https://www.v8sleuth.com.au/the-engi...percars-noses/

The AVL dyno will help to evaluate allegations of unequal inertia (and thus unequal engine response and engine braking) between the two engines.

Thoughts?

Even if you did vote unsure, do you suppose the difference is so negligible that Mustang operators could have already won all nine races easily if they had simply executed setup, driving and strategy at a higher level, as due to world class technical parity processes one can be confident the vehicles perform and respond identically or all but identically so as to have negligible difference?

Conversely if Mustangs are much more competitive after formal homologation of this Symmons Plains practice engine map (and fitment of a heavier flywheel to the Chevrolet engines if necessary in response to AVL testing), would it support the notion of a prior disparity or merely be a coincidence?