HELP, rear end sagging bad trying to get ready for drag week

Original springs would be pretty much level when fully loaded. So that part is not terrible.
If the other guys see a crack, then that spring set is more than done.
Can't see the shackels, but they should be angled back and have room to move more vertical as the car rises.
So that's another indicator.
If its not cracked, or you going to go with a stock rear spring pack, cut the box sections of the adjustable snubber so its just touching. If the spring is not totally destroyed it will get you by. Even with BFG Radial T/A I found riding the snubber helped the launch and reduced the spring wrap.

IMO you'll get a much better launch with a leaf pack that has a very stiff front section, and bit of arch and/or some adjustments to get anti-squat.
The SS springs Oldmanmopar has are made for this job.
IMO its also important to get the pinion angle in the ballpark. Get the 2.5 inch wide angled shims as required.