As Chris suggested, there's a number of factors other than just the diameter, that affect clearances, height, offset, tyre width, etc.
I'm guessing a bit here, but on standard rims, within a "standard" range of tyre widths, a 2" lift would probably be sufficient.
For example, I fitted 305s (33") on 16x10" zero offset rims, without a lift on old springs, and the fronts caught on the front of the sills and both front and rear didn't have much scope on flex without catching on the arches.
So, I fitted an OME 110mm lift kit with castor correction, and all is well now.
That's all I can offer on the subject I'm afraid.