Need some Suspension Advice Please....

I have been running into a problem with my Dart bouncing during the first 60' of a run. The suspension will load up as soon as I hit the throttle, but it almost immediately unloads and bounces three or four times before it hooks up again, and goes.. I have adjusted the pinion angle, and added a pinion snubber, and that has helped the car hook, but now I have this bouncing issue. I have the pinion angle set at -5*, and I have the pinion snubber set at about 1/2" below the floor. Someone suggested I put the snubber up where it is closer to the body, and that will help, but does anyone else have any other suggestions on what to try in order to eiliminate this issue? Thanks For the Help.