for 2000 bucks get hitech stage 2 cams degreed installed and dyno tuned. my local speed shop charges around 1400 for cams installed degreed and dyno tuned(if you have a tuner or it will be more. price might run a little higher depending on your area.
1990 mustang gt 5.0l, red, aod- its build time
2001 mustang gt lots of mods- sold