front end sits too low

Johnny Dart said
The torsion bars were installed with the adjuster bolts screwed in to far.
This is why you have run out of adjustment room on the bolts.

Put the car on stands,loosen torsion bar, bolts, back torsion bars out from lower control arm,loosen the adjuster bolts almost all the way out,reinstall torsion bars,tighten the adjuster bolts. Done
Now you should have all the adjustment necessary.

This is exactly what I did years back on one side of my Cuda That broke. The new bar went in & voila, I adjusted it to match the other side and never looked back. That Cuda would leave Camaros in the dust through "S" curves in fact the faster I went the better it handled the turns.