Go progressive, H&R makes different springs of different strenght, you could also buy just the fronts, which the ones that would bother more.
Maximum Motorsports have them, and you could buy them separate.
here you have their table.
http://www.maximummotorsports.com/hrtable.html
lito
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92GT,SOLO RACER, COBRA BRAKES, R1 TIRES, GT40, GT40X HEADS 58CC, 24LBS, 70MM/65MM, E303, 4.10, MANY ROAD RACE MODS, CORVETTE, CAMARO, RX7 AND SUPRA SOLO EVENT EATER
www.killersracing.com
www.clubcopa.com
