R U sure you bled them properly? I just bled all my calipers and clutch today, although I did not bleed the ABS. My car is a 95 LS SE.
My brakes are nice and solid just like they should be.
I presume that you bled the little nipple on the top of the ABS? If so make sure that you use a length of hose plugged over it and that you always re-tighten the bleed nipple before you take off the hose, there should be clean clear and bubble free brake fluid from the container you are bleeding it out to right up to the bleed nipple.