Radflo spring rate and calving questions

Hey guys, hopefully this hasn't been covered in another thread, couldn't find what I was looking for so here goes nothing!

I'm running radflo 2.5 non resi coilovers and maxtrac spindles up front. Spring rate right now is 650# and the springs are 14" long. Not sure about valving, but I bought them gently used from another member here. Now my question is, I just do not feel a drastic improvement in ride quality from my previous set up. (6in pro crap with coil spacers). I am running a tube bumper up front, but only weighs maybe 65# or so. Should I go down to a 600# coil and have it revalved? Any suggestions would be great. As far as coils go, anything other that eiabach good? Thanks in advance.

Kyle

 

650 is too high for a 2wd, 600 or even 550 is best in my opinion.