will my turning radius be better with the a-arms or will it get worse?
And if i tighten up that front stock suspension do i need to tighen up the stock rear?
Does After market suspension lower your bike if you have +3 a-arms?

 

Your turning radius is set by the steering stem and the spindles, If you don't change these, the turning radius will be the same. Most aftermarket shocks are somewhat adjustable for height, but not much if you want full travel.

 

you'll probably bottom out your stock shocks pretty easy with +3" a-arms.....I suggest gettin aftermarket shocks......