Northwind Engineering (.....
http://www.viperclub.org/northwind/ ) also sells a nifty adjustable perch, likely a lot cheaper than the ACR version:
RIDE HEIGHT ADJUSTER........................$249.00 ea.
• Designed to fit over your OE Koni shock absorber or with item 17.
• Adjustable spring platform allows 1 in. ride height adjustment.
• Spring combinations available for street or track.
• Four wheel alignment required after lowering.
and shorter spring caps:
LOW PROFILE UPPER SPRING CAP
a.'92-'95 RT/10..................................$45.00 ea.
b.'96-'01 GTS and RT/10..................................$49.00 pr.
• 9mm shorter than OE spring caps to lower ride height 1/2"-5/8".
• Four wheel alignment required after lowering.
another option is different springs from Eibach and others