I have a 1981 regal with a c5 brake conversion. It has a '72 8.5 out of an el camino which i have been told is an inch wider then the 7.5. Just wondering how much tire and what offset I should go with to fit underneath the car with 18" rims. Would really like to stick with 17" but not sure about wheel options that will clear the brake package up front. Thanks in advance.
