Massive caster variance Side to side

What uca gives 8 degree?
DIY 21.jpg

DIY 24.jpg

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These are B body arms I have in my Charger.
I was able to get 5 degrees of caster with stock arms and offset bushings. Maybe my car is blessed. I have another '70 Charger that I'm going to do some alignment testing on. That car tracks straight but hasn't been aligned since I've owned it. I replaced the whole front stub in it in 2020.

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Second fit 8 A.jpg

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