Adjustable vs. Non Adjustable Arms and Shocks

[dls322]

Hello All,
I've been checking all the posts and didn't find a straight answer to my questions. I'm upgrading my rear controll arms and am wondring the advantage to adjustable vs non. If non is ok should i get adjustable upper? Also i've wondered about going with urethane bushings becasue i've heard the non-urethane are better. Also on the topic, shocks. Are adjustable worth it over non adjustables. I can get KYB GR2's(nonadjustables) for $140(4) or AGX's(adjustables) for $335(4).
Thanks for all your help, I'm tired of wheel hope and not launching correctly and getting burnt on my monthly trip to the track. She is mainly a street car though.

 

[BLOWN 5.0 FOX]

Ditto

 

[dls322]

Anyone have any advise??

 

[89MustangGX]

The advantage to having all adjustable suspension is that you can fine tune it. That's all.

If you don't think that's something you'd want to do, or don't want to spend the extra money, most companies also make their parts or you can find similar parts in a non-adjustable that will work very similar.