Some shops are only interested in turning the numbers green. You probably need to go to a performance shop to get a proper alignment with rear camber included. it's not easy on the S550 chassis.
Leaving that much cross camber on the front is silly. I'd also toe the front in just slightly...
Yeah, there is a bolt on the upper control arm where it mounts to the body. The hole is slotted so it gives you I think 0.5deg of camber adjustment or so in either direction. You can't just adjust it and keep driving though, it throws the toe out when you change the camber, so you'll want to...
If you don't plan on going to the track, this one:
https://www.lethalperformance.com/mcleod-2011-2017-mustang-5-0l-rst-twin-disc-clutch-kit-w-aluminum-flywheel.html
If you go to the track at all, then pick an RXT instead. I mean, if you drive aggressively, maybe consider the RXT anyway.
Can you see on the tires where they're rubbing? If they're rubbing on the quarter panels, you might be able to pull the camber in a bit or something to fix that.
There are tons of awesome choices for your power range if you plan on staying there. Mcleod are super popular in addition to Exedy, as mentioned.
Here is some stuff to browse if you're interested...
You can do anything you put your mind to!
I haven't done an S550 steering wheel, but generally the wheel will mount onto a shaft with many splines, meaning that you can accidentally put the wheel on one spline to the left or right of where it should be and have an off center wheel. I'd check...
do you mean 3.88?
Have you used forscan on your car at all? I turned the boost gauge from the ecoboost on in the dash and it works great.
16psi is scary tho.
do you have one of these or something?
https://www.uline.com/Product/Detail/H-1233/Drum-Handling/Steel-Drum-Truck?pricode=WA9120&gadtype=pla&id=H-1233&gclid=EAIaIQobChMImqDJgaDS6QIVUb7ACh0INwlpEAQYAyABEgJZEvD_BwE&gclsrc=aw.ds