Well I just finished mounting my drag radials on my stock RT wheels. They fit perfectly. They bulge a little bit but they look great. Here are some pics I took.
I have the same tires on 18x9.5 inch wheels their website recommends 10'' wheels. They are real good should be able to get 1.8 60' or better with them. I air them down to 22psi on the strip some go down to 18psi.