detroit speed

Hi all, first of all, thanks for a awsome forum to read! Now, im a little new to the 1st gen Nova/chevy II since my dad allways had GM A-body´s. And now I got my own -65 Nova SS im workin on. I have started in the front with a CPP Mini subframe kit with new controlarms, plate and some more and...

http://www.detroitspeed.com/1968-1974-X-Body-products/010201-body-mounts.html Has anyone used these before? They claim this will improve vehicle handling response by increasing chassis stiffness. Are they worth $140 and will they make a noticeable difference? If they are I might as well...