What can I say. My 427 SC manual says start with settings (cold) of 24 psi front and 27 psi rear.
I did hear back from TireRack and Goodyear, and both in typical corporate speak said I should follow the pressure indicated on the "door placard" (I am still looking
) or the manual.
Oh well, I will just continue to do as I was doing, maybe go down one or two pounds when its gets colder and the pavement gets harder. As for switching tires, these GoodYears got a lot more miles in them.
My previous set was Goodrich tires and they were doing fine and eventually retired mostly from old age.