Fox body rear bushings

My car has a stock style suspension setup with SSM lift bars and adjustable upper arms. 9" diff with rubber bushings in the upper suspension arm mounts...Should I ditch these for solid mounts or Poly? I'm putting in a transbrake this winter, bigger hit coming so I was looking at the weaker stuff. The torque boxes are mint and already fully welded. The car was a 10.00 car with a 418W/glide before I bought it. Wheels hanging on the brake, no anti roll and little to no body roll. Best 60ft to date footbraking, 1.50

Poly will work.  We usually put solids in everything though.

Any preference to a kit or manufacturer?

I like team Z's.  I think they're around $100.

Are these the ones you are talking about?

http://www.teamzmotorsports.net/product_p/tzm-sphb.htm

yes.