Re: T-bird 4.6 Mustang 4.6
Base on the motor is the same. I believe that the mustang will have a bit more of an aggressive ecu and the exhaust flows better on the mustang too.
First thing I'd do is uncap the exhaust. There is so much restriction on my 92 and its the main reason why the HP numbers are so different between the two. The next would be air intake, bigger mass air and maybe throttle body.
My T-Bird has 3:08 rear gears and thats a big killer off the line. I hope soon to swap them for 3:73's or 3:90's
Be a good start.