Super Stock Springs and info needed !!!

You need the ready to race car weight to get the correct spring.
Why a 7 inch tire?
Southeastern Gassers Association rules for 2019
Hoosier built new tire for this group for Stocker Stock class
Tires is probably like 9 or 9.50 with sidewall but tread will be 7" .
We are also limited to 8" wide rim.