need help with backspacing!

[boostedtc]

hey guys i just recently bought a 1990 corolla wagon as a daily and want to put some 15x10 diamond racing stock car series, heres the link:

http://www.diamondracingwheels.com/stockcar.html

i want it to be flush with a nice stretch so if you guys could recommend what back spacing (1 1/2"- 7") to get and what tire and size for nice stretch i would appreciate it!

[ABACABB]

1 get piece of tape
2 hang it from your fender down to the ground
3 get a measuring tape and measure from the hub to where the tape is
4 thats the number you want
5 profit!

a 245 is a nice stretch for a 10 but i would make sure that you can fit a 10.

[ABACABB]

jus noticed i posted that at the time my WFC number is kinda dope lol lmk if that works for you!

[boostedtc]

i know i can fit a 10 without a doubt cause the cars not lowered yet, i want to get the wheels first and then drop it from there