Have the battery and everything in the car, remove the wheels. Put the chassis on a flat glass top or straight table / wood / board.
Undo the top deck screws (which will release the tweak, most of it if any)
Undo the shock tower screws that bolt to the bulkhead. First push down on the center of the shock towers and tighten them accordingly. Then have a straight bar go from shock tower to shock tower and gently push down... and tighten the top deck screws in a X type pattern. This should be done almost every round especially if the car is off the boards a lot.
I would then check droop, camber, toe, ride height etc