Wheel suggestions
I found that you will get a bigger tire on the darts with an 8 inch wheel with a 4 1/4 back space then the 7 inch with a 3 1/2 back space. Its closer to the spring and less tire bulge due to a wider wheel. I had several with Cragars 7's and 8's the 8's always had more quarter to tire .clearance
Here is an old picture the black car had 8's red car had 7's same g60 tire they rubbed on the red car.