Bob,
I am running 215/60-15 and 295/50-15 front and rear BFG tires on 8" and 10" rims, respectively. My car is a 74L with no body or clearance modifications; there is no issue with tire clearance. The diameters are very close to stock with a good stance. It is my understanding, from posts on this forum, that running 8" rims on the front improves low speed steering effort. Below is a picture of my car with the tires listed above.
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