Nitto RII PSI on the street?

What would be a good/safe PSI for the street on these tires? I have them on all 4 corners, currently a 32 PSI. The car is an LT1 F-body.
Thanks!

Rag joint eliminator problem?

I installed the rag joint eliminator a while ago and I noticed my steering wheel points about 20-25* to the left when going straight after its install. I also have installed new balljoints, LS1 brakes, shocks/springs and tie rod ends right before it so I am going to take it in for an alignment tomorrow. Do you think they will be able to fix this issue or is my eliminator defective?

Rollbar suggestions needed

I would like to install a rollbar in my car, mainly for personal safety reasons. I plan to autocross the car beginning this summer so I would like a bar that would comply with whatever regulations they have for autocrossing. (keep in mind, I'm new to autocrossing and know next to nothing about it)

The body is a 93 Camaro with t-tops. The car will have a bit over 400 RWHP.
Thanks!

New to road racing

I have a 93 Z28 A4 putting down 348 RWHP / 345 RWTQ and 4.10 gears.
I also own a bone stock '99 BMW 328i, but I doubt I will be racing it. (daily driver)

I have literally no road racing experience, not even as a spectator.
I am thinking of participating in an upcoming event (MFBA) at Road America.

The suspension mods on the car are as follows:

SLP Eibach/Bilstein shocks/springs
Front/rear ES sway bar endlinks
front hollow strano bar
ls1 brakes (stock pads and rotors right now but they have minimum wear)
I installed new tie rod ends and balljoints
engine and tranny mounts are ES polyurethane
will be getting Nitto RIIs very shortly

I was going to convert the car to a T56, but that might not be happening for a while. Are there a lot of people racing autos with good results?

Any recommendations for the first time on the track? Should I add anything (modifications) else?
Thanks!