I'm not sure how much that EVO weighs but on a 1055 kg Subaru I drive I use these settings.
ride height-- F -14 (negative) / R -16 (negative)
spring rate-- F 10.4 / R 7.5
damp (e)-- F 5 / R 4
damp (c)-- F10 / R8
anti roll-- F 3 / R 3
camber F 0.8 R 0.8
toe angle F 0.0 R 0.0
Diff 15/85
(asphalt set up)
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edit- Ya may want to try something closer to 50/50 diff on snow.