Suspension feels Wobbly
 

Hey guys, I just got my car about 3 month ago, and I can't believe I allready ***ed up the suspension. I got pretty good at turning around on one spot just by doing a spin out. Anyway, I thought it was my bushings, but its not, they look ok. Could it be because I messed up the allignment ? It feels really weird like the steering responce is not that good and if I drive in a bad road steering wheel is all moving around... its usually stiffer on 240SX 97 and 98. Anybody knows what could it be ??? I am scared to go over 80 mph...

I also recently installed a front strut bar... could that *** something up ??