Ladder Bar or Caltracs

My new toy has ladder bar with leaf springs what do you guys think, I am not sure how this will work on the street. I know this is the racer forum but I think you guys will have better uderstanding of this stuff.

Car is 69 cuda 440 4/speed dana 60 4.56 gears.

I will be driving mostly on the street but take to track once in awhile.

Should I stay with the ladder bar setup and maybe add coilovers or take
the bars off and throw some /6 leaf springs, caltracs, qa1's.

Just trying to get some good input on which way to go. Any thoughts would help.