Just got car running again, changed motor, rear springs rate, and wheels. Should get on dyno before the end of the weekend to see how it works. Sounds good, I used Borla Cobra exhaust cut off and dumped after the IRS.
Working on as we speak, Rear wheels took a 1/2 spacer, I have 3" studs so OK, Hub centric Spacers, I am going to cut fender lip. I dont know if it will rub but I dont what to find out. On street no rub but track car sure squats in corners. I did go with 700lb rear springs and loosened sway bar. Wiring Rear Diff Cooler, It ruined my T2 Diff so Now I am running a stock 03 Cobra Diff.
I can't even imagine how close that would be to the fender lip. Your 315-30-18 nt01's are 1.20" wider than my 295-35-18's haha. What is the width of the wheel you have?