Ok heres the deal i have a a 05 G35 sedan on eibach sportlines, Im lowerd about 2 inches all around, almost no gap. I do not really want an aggressive setup at all, I want minimal tire stretch if any, I wanted to get the varrstoen Te37 reps. Which brings me to this, do you guys think i will be ok with a +30 offset, with 10.5 rear, and 9.5 front, What do you guys think??

 

You will have to stretch the rear and run about 3 degrees of camber to make it look good. Probably something along the lines of 255/35/19 rear and 225/40/19 front will give you the same overall diameter and similar stretch.

Just for reference here is a pic of my rear wheel. 20x10 +25 with 255/35/20 sitting at 2.9 degree of camber. (10.5 +30 will sit out 1mm more)
I pulled my fender slightly and rolled them flat.

 

^Thanks for the info, i appreciate that!

 

You're welcome. I hope it helps.