When I bought the Cobra in 2005, It had 390 BHP at the Motor and Dynoed at 335 RWHP with 870 Miles on the Odometer and a 3.55 Posi rear.
One day soon after that when I was with the Modern Mustangs of Jacksonville Car Club, We went to a "Special" 2-mile stretch of road everyone knew about to do a little "Speed Testing".
The Cobra, Bone Stock ran right up to it's Factory Speed governor setting of 155MPH before it was Electronically stopped from going any faster.
Since it Now, With 1014 RWHP, reaches Over 140MPH at 9.936 seconds in the 1/4 Mile using a 3.73 Posi rear, I have No REAL Desire to find out What the Top End Speed would be ATM, due to the fact I would like to hang around Planet Earth Just a Little While Longer. LOL