if you keep the stock blower, there isnt too much maintainence. i think ford says you can keep the blower oil in there for 100k miles. if you go the power route(kenne bell/ whipple/ procharger) then your tune up schedules will be greatly accelerated. my buddy with his mystichrome with a kenne bell changes his oil every 1000 miles, usually he changes it after a track event. and changes teh spark plugs every 6 months or so.
no i think that the 04 cobra will be enough power for me. i do plan on a magnaflow catback, kn fipk, and some catted x pipe, possably some headers if someone makes them for the car. that will give me enough. im not going with the smaller pully kit or the kb or anything else that i will have to get the car dyno tuned.
that is the only reason im thinking of getting rid of the gt. the things i want to do beyond this point, will require dyno tune of the computer. then ford wont touch it as far as repairs.
if i had a mustang shop close i would just build mine, cause the appearence is alot better then the cobra. if i dont get the price i want for the gt i guess i will be keeping it anyway