You are kind of limited....225/60-14 may work. They are roughly 17mm larger in overall height, but you do have alot of room in the wheel wells to fill. Your speedo will be off slightly also. I did have a website that quickly converted tire sizes and computed speedo error. I tried this with great success with my Subaru. I was tired of the sloppy handling so I went from a 185/70-14 (stock) to a 205/60-14. Speedo error was very small and the handling benefits were substantial.

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'85 300SD (formerly california emissions)
'08 Chevy Tahoe
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'88 Kawasaki KDX200
'71 Hodaka Ace 100
'72 Triumph T100R