Spring Loaded 3rd Link

I installed a 1600 lb 3rd link on my asphalt late model to try and get some more bite. The problem i have now is that when i get off the gas and on the brakes I am loose and the rt. front bottoms out on the sway bar adjuster. I have no room for a 90/10 shock without doing a great deal of fab work.
Looking for other suggestions to make this 3rd link work. The spring is moving about 7/8" The track is 1/4 mile flat
cross- 56.8-with sway bar-57.8
left- 58.1
rear- 50.6
total- 2540
rt.rear trailing arm is mounted about 1" above the left on the rear end and has 3.3 degrees angle
left rear has 1.3 degrees angle
3rd link has 8.4 degrees
panhard bar is 9-3/8"rearend and 10-7/8 chassis
pinion angle 6 degrees
LF spring-275-shock-6
RF spring-300-shock-6-3
LR-spring-200-shock-4
RR-spring-150-shock-4
ride height-4"

Thanks Rod