koni adjustables or 50/50 shocks rear and 90/10 struts front along with front drag springs will help you loads. also adj. UCA's can get you down .05 on your 60' with tuning. like rick said, lakewood makes cheap effective drag shocks, but they aren't adjustable and won't make for as nice ride for sure.
c springs i'm believing are alright, as a drag spring needs to be pretty stiff, but the fronts need to be spongy to provide better weight transfer. for 30 or 40 bucks more shipped, at www.stangsuspension.com, you can get maximum motorsport LCA's with spherical frame bushings. you'll get a little more road noise but a lot better planting.