with almost 400rwhp i’d want 10.5 in the rear with a 2 way diff too… bet your launches are neck snapping 
Well - right now I run a 245/40 in the front and only a 255/40 in the rear.
I went a bit weak on the tire size this time in the rear just to check clearances. For next spring I’ll probably run a 275/40 Mickey Thompson ET Street Radial on the rear…there seems to be enough room to fit.
Wow - haven’t been here for a while…thought I’d update…
Did a slight build over the winter with a complete colour change. Now running a top mount twin scroll GT3076R all tuned with AEM EMS.
Car looks beautiful! Good job
Some new shoes for the ole’ girl. 17x9.5 +18 on all corners
