Fully adjustable upper A-arms for ‘67 Barracuda

No, I’m am not setting it up for negative caster that would be idiotic, I want 6 degrees of positive & need adjustable a-arms to achieve that which was the purpose of this post.
I'm confused. I read this from your earlier post - It is negative caster, I know how to correctly put offset bushings in, I did alignments for several years at a shop & understand suspension geometry. I’m not doing a pro touring lowered car, it’s not at all the ideal set-up, I’ve got fenderwell headers, short 24.75” tall tires & need it taller than stock height.