I run 185/55-14 all around
But with a stock front suspension, two stock spacers were not enough with my Daytona's. I could barely get a single wall piece of thick cardboard between the inner sidewall and my lower spring perch. You could go the equivalent of 3 stock spacers (15-18mm)with longer wheel bolts, but then the wheels would look odd possibly sticking out further than the body. I was forced to go to 2.5" coilover struts. I tried Leda and KSport, both with ****ty fitment issues. I think I have finally figured out the issues with the KSports though. But to go this route, you will be paying $$850 for the set of KSports, $200est. for custom strut top spacers, $60est for new 7" front springs to replace the 8" springs shipped with the KSports and a lot for a custom alignment to setup the front end properly after lowering. In retrospect, if I had known then what I know now, I would have gotten the 13" Daytonas and cut one coil out of the front stock springs. I could have purchased another nice car with the money I have wasted on wheels and suspension bits.
Good luck.
Arman