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

i can’t figure out why the rear is sagging so bad, it does have full tank gas, brand new drag shocks, the adj pinion snubber if I put it in will hit na matter what. Not sure why the rear shackles are also hitting. Here’s a few pics. Trying to get ready for drag week and this popped up, just got the car done and can’t figure out why sitting do damn low. Original rear springs.

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I hope that's not copper brake line in your second photo.