NASCAR Racing: tire pressure, spring pressure, correct direction

Question
Which direction in PSI do you go if your car is loose?  I know the PSI will build on long runs and as tires heat up! So if you have added or taken out wedge and you are still loose or tight which is the correct direction in PSI to go to correct each situation?   Thanks for your time!

Answer
Since one pound of air is approximately equal to 20 pounds of spring pressure raising tire pressure is the same as increasing the strength of the suspension spring which reduces the mechanical grip of that corner of the car. Loose can be corrected by adding pressure to the right front tire, while a tight condition can be corrected by increasing the right rear tire. On the left side the opposite would be true.