Yes they can. The front spring will be very loose under no load though from previous experience. It rattles about and doesn't seat right.
You've given it time to settle yea?
Its just down to the type of coilover. Those dont have preload and the shocker doesnt screw into the hub mount so you are limited to either removing the helper or fitting shorter springs but the shock may bottom out on bumps if you did the latter.
FS: HKS SSQV recirc inserts, S14 eccentric rear arm lockout washer kits