Hey there, i have a 99 AC ZR 700, it's stock except for a Rumble Pack silencer, and the track is picked. I am seeking advice on a clutch kit or if i can just change springs? I have only found two kits available for this sled so far.(EPI and Black Magic/Heartthrob)These kits do not give any specs in description other than (0-4,00FT). Any info would be greatly appreciated.