Cure for high speed nervousness?

[SPDKING]

What are people doing to cure the high speed nervousness of the Z34?I was doing about 65 at highway speed and someone suddenly were hard on their brakes ahead of me to avoid a fridge that fell off of a pickup truck.

When I went hard on the brakes I quickly reacted because it looked like I wasn't going to stop in time to avoid a rear end collision when pressing the brakes and changed lanes because I didn't see a car next to me just 20 seconds earlier. I felt a lot of vibrating in the steering wheel and in the car so I assume I overloaded the front tires so much that I was losing grip, the car also seem to dart uncontrollably for a split second and regained composer.

I figured with the tires and new shocks and sway bars (I know they only come into play in hard cornering), this might cure the Z34 nervousness but it felt the same as it did when it went over road imperfections at high speed.

Has anyone tamed this for the street and track? It scares the crap out of me and my 350Z never did this, it always felt flat and stable at high speeds even in stock form. Do I need to soften my front struts? I'm running full soft in the rear and full stiff in the front with brand new tires with only 100 miles on them. I know I need coilovers in the future but who's solved this nervousness at high speed issue? If it's doing this in emergency situations on the street, I feel like it's going to do this at Willow Springs if I'm hard on the brakes and then trying to change direction quickly after getting off of them. Will making the front full soft fix this?