dirt track backspacing
 

i am building a metric car monte regal etc im going to be runing a 8 inch rims with the 10 inch hoosier tires im trying to figure out what backspacing i need for the rims a 2 or 3 inch offset any help thanks

Most guys try to run 2-offs all the way around, in order to get the widest wheelbase footprint legally possible.

However, on very hard dry slick tracks, if you run a 3-off or a 4-off on the right rear only, with 2-offs on the other three, you will get more roll center "sidebite" traction stability in and out of the corners.

On wet heavy tracks, run a 2-off on the right rear also.
Use a good beadlock on right rear either way if your rules will allow.