When you say front end float it means one of two things to me:
1. Something's loose. You need to jack up the car, put it on jack stands, get someone to shake the tires back and forth as hard as they can while you look for the play. Most likely the wheel bearings are adjusted too loose. Could be the ball joints, a-arm bushings or tie rod ends, though. Replace everything you can with poly urethane bushings.
2. Your shocks have leaked the
oil out or the rubber bushings have worn out and are letting the wheels bounce too much.
Ninety is nothing in these cars, you need to get that under control.
Paul