tire psi in slicks

Have a new set of m/t 28-10.50 part#3055 wondering what psi you guys are running ,car is 3085 lbs duster ,supper stock springs rancho rear shocks with snubber .Have never ran that small of tire thanks for help.

in my 3200 belvedere I run 29.5x9x15 mt bias slicks and I usually run 13psi.1.56 60ft 10.90-11.00.

I run that size on my street car. 15psi@3875lbs. 11.0/1.55 60ft
Doug

28x9 mt 12.5 to 13. 1.43 60 ft. 3000#