Going to take Road runner to track again this weekend and plan on doing a few onsite adjustments

First off I plan on dis connecting the front sway bar.. Do I need to disconnect both sides or just one side to make inoperable?

Second I run 275/60-15 nitto drag radials, I am thinking about running 15 psi of pressure, is that two low?

Finally I for a set of Rancho adjustable shocks for back with 9 settings. I run 3600 SS springs, what I have read on here is most guys like it at setting 7, 8 for stiffness? Is that a good ball park

Here is the ride again 1972 road runner with mild 440 in it, and ayto transmission.. I got 90/10 shocks up front, and the rest is stock. Back super stock springs, pinion snubber and Rancho shocks


Thanks in advance

Mikey