[sn95mustang]

hey im new to the forum im going to get my stang tomorrow so i though id ask some questions. 215hp isnt enough for me so i have been pricing out a e303 cam and new injectors. i was thinking something something like 19-25 pound/psi (forgot if its psi or pounds) shorty or long tube headers and a tune or chip. about how much would this add? and what other mod would be good and cheap? btw its a 5.0 5 speed sn95 short shift kit, 2.5 exaust into magnaflow mufflers, lowered,sub and amp, dvd player. thanks!
Coop

[sickfox]

You do not need to upgrade your injectors. The stockers are fine.

What is your main purpose of this car track or street?

I would recommend getting Gears (4.10 or 3.73) it will increase your seat of the pants feeling more then anything else you listed. Go with shorties with an o/r x or h pipe.
If you wanna spend some cash then do head/cam/intake.

[Bullitt95]

Shorties? Go long tubes or go home. Shorties are only slightly better than the stock headers and you'd be lucky to gain 2hp.
Agree on the first mod being gears and since you have a 5-speed, I'd recommend 3.73.
For serious power, the stock heads/intake have to go. The stock cam (with 1.7 rockers) is pretty decent but a 10-15rwhp gain is still possible with a cam swap provided you've upgraded the heads/intake.