3 Link Setup Questions

I have a hobby car that seems to be pretty close to a B Mod setup.  3 Link rear (underslung) with camaro snout.  I have been fighting the car for years being tight but after taking a couple of years off with the car and now racing it again I can't seem to get the car to behave.  I run on a 3/8's mile medium banked red clay track.  Does anyone have any general setup advice they can shed?  Spring rates, shocks, j-bar location etc.  Also a huge question I have had is, my j-bar mounts to my frame on the right side of the car (its an old asphalt chassis that has been converted to dirt), should I be moving it to the left side of the frame?  The car has always had a pretty consistent push coming off the corner and it seems the bar being on the right side of the car would really plant the LR and create a push under throttle.  Has anyone else ever encountered this?  Is anyone else familiar with a right side mounted j-bar?

Any advice would be very appreciated, Thanks in advance.