new member needing help!!!!

i did the conversion over the summer on a 2001 to a t3650. i used a manual tranny computer out of a 2002 gt and i have not had a single problem. i did not try to match anything up, i just got a manual tranny computer from a similar car. the 3550 is an option in your car, i do not think you should have that much trouble in finding parts. i wish i could tell you more about the computer, but if your car is similar to mine, any manual computer may work. i dont want to tell you anything wrong though. check out prestigemustang.com, they are a salvage yard who deal in mustangs and they ship to you. good stuff. just yell if you have any other questions i might be able to better help you with. someone else should chime in about the ecu. i think you should be ok though...