1995 Cobra performance?
 

I have a 1995 Mustang cobra which is pretty much stock besides the bbk air induction system. I want to keep the car naturally aspirated and was thinking about upgrading the throttle body to 70mm and perhaps deciding between full length headers or shorty headers. Please anyone tell me whether this is a good start/combination and if you have any suggestions, I would greatly appreciate it.

start yourself off with some longtube headers and an x-pipe into some flowmasters. its a cheap upgrade and youll love it. next go with a gear upgrade, depending on how the car is used and your driving style shoot for a 3.73 up to a 4.10. hold off on the throttle body, you wont notice much of a difference. get yourself some underdrive pullies. that should keep you occupied for awhile. when thats all done well be here

if you want cheap power, upgrade the cam. The TB is the least of your worries.

nitrous FTW. just go with a sensible modern cam. b/e/f/x cams are getting close to 15 years old... technology has come a decent way since then...