Since this IS a "car thread"...
So, you complain about a chevrolet tranny breaking that was built for passenger cars? Ok..
Not that I have any brand loyalty to chevrolet, or any other manuf. But I certainly wouldn't buy a ford again. And mos tof hte parts on your car aren't ford. And there were fords in the 7's, WITHOUT stroker motors, when i was "into" cars at the age of 22, which was 10 years ago.
In fact, due to limitations of ford mustangs, "all things being equal" you'll always get beat by cars like buick GN's (always have, always will) and "longer" cars like vettes because you'll never get the same traction, again all things being equal.
I spent plenty of time enough at the track racing my own mustang ('90 LX) to get a chance to see which cars were on top. that's why i sold that piece of junk and bought an AWD eclipse - another guy that regularly smoked them. It's all about the traction when it comes to 1/4 mile, as I'm sure you know.
Sigh....
I run in a class that is mandated by factory suspension, and limited to a radial tire, not a slick. I am the fastest female in the world on a radial tire, and the fastest pass EVER on a radial is only 7.97, which incidentally, is a fox Mustang with a turbo as well.
Powerglide transmissions are the norm for all of these type race cars, and it was a joke. None of them are the originals that came in your standard car.
As far as non-stroked motors in the 7's, I check the record, and the fastest stock bore/stroke/block combo with a power adder is nowhere NEAR the 7's. 10 years ago, the fastest Mustangs in the world were using Windsor stroked powerplants. In fact, in 1994, Billy Glidden was the first in the 7's with a 7.99 at the Motorsport Nationals with a Crawford 400 inch nitrous injected windsor... not the 302 powerplant.
But what do I know?
I do however have to admit that from the factory... the new Z06 and the new Cobra are a very tight race.