I found an article on the motortrend website of an 02 ss vs 01 cobra...they said they managed 268 @ 4400 rpm with the ss and 240 @ 5900 with the mustang. did they do this to keep things looking close on power? 268 @ 4400 seems pretty good but it should keep on climbing.
http://www.motortrend.com/roadtests/...omparison.html