I agree with Goody, if you want something more modern, the 17/18 is a decent combination. I used to have 15's on my car. Currently I have 17's all around, but the tall tires for 17's in the rear are pretty much non-existent anymore except for maybe the old 275/60R17 Lightning tire. Once my rear tires are worn out, I will probably go with the same tire size as Goody on the back of mine. I have not seen any 17" drag tires taller than 26". I run some 15's at the track with ET streets. I used to run the car really low, but after I dented the heck out of my transmission pan, I raised the front end back up some.