Drop spindle question

Just adjusting the ride height does not change the ride/spring rate.

Sounds like it's bottoming out.

What front torsion bars do you have now?

How much space between your short lower control arm bump stop and the frame with the car at the lowered ride height? Or/and how low is your K-member to the ground when you lower it? Just trying to get a measurement of how high you want the body when it's lowered.

What is your front tire size?