In another forum a chick posted dyno numbers from a mustang dyno, and they were 448rwhp. Which sounds about where it should be. But still it's close to what can be produced from a regular s281 with a jdm 475 setup.
She also caused a huge blowout on the website talking trash about it being the car of all cars, hence my bitterness in the other thread you made.
There's just not enough of them around, and for some reason, the mustang magazines haven't gotten the Saleen, steeda, Roush, cervini's, livernois, vortech and gt500 together for a king of the mustang hill test.
Leave them all on regular street tires, and we'd have our answers.