I'd say tire pressure is about right and might try a little more. Small tires like more pressure. I ran 14-15lbs in my low 11 sec Nova with 28x9 Mickeys. Most stock eliminator guys run every bit of that and more......are you hurting your 60 ft with the wrinkles? Probably not, but you might bump the pressure up a little and see what your 60's do.
Johnny