I am in the same ballpark as Kees and Bob, on my leaf sprung rear suspension LBCs I usually run about 32 psi front and 28-30 rear. If you are looking for smooth ride over handling you might want to go a little lower than that, as stated you can experiment and see what you like as far as ride/handling, I think under 25 pounds or so on radials is too low. Greg Lemon