1" block in the back if you want to keep it level. You'll have basically the same setup as I do except different UCA's.
Are the bump stops just to limit down travel? I notice that at full droop my UCA's contact the top of my spindle. I've been contemplating grinding a tiny bit off the spindle, but if I got the larger stops that would most likely fix it.get bigger bump stops. it will keep you from blowing up the Bilsteins.
https://www.summitracing.com/parts/...y-suspension&gclid=CP387qj9uc4CFRZqfgodlWMKFQ