Don, How old are the tires? or how many runs on them? I don't see too much too worry about in the picture you posted. Old tires will and can throw you one way or the other pretty easy, my car does that as it always wears out the sidewalls usually before the tread at least with the last Hoosiers (especially when it was 60' ing 1.23 with the 4.56 gears). With fresh tires if it still goes slight right add preload to the passenger side. I am there to help you if needed. I also like to rotate the tires side to side about every 25 -30 passes to let the sidewalls live longer.