i run 275/60/15 on a 10" wheel on the rear of my cuda, and 235/60/15 on 7" on the front.
i had the 10" rears setup with 5.25" backspacing in order to clear the springs by 0.5".
however i would like more room to the outside fender well (my car has all sorts of old dodgy rust repairs around this area), as it rubs when you have people in the back seat, or heaps of stuff in the trunk.
i measured everything a 1000 times before settling on 5.25" backspacing, and also test fitted one of carl's 10" 5.5"BS wheels with a 275/60/15 on it.
it was too close to my springs, and rubbed. it fitted his 73 cuda fine, so goes to show how cars can vary.
i have different distances from the tire to spring on either side, as well as different distances to the fender lip (which i rolled) from side to side.
i personally feel that a 275 looks better on an 8" rim. the sidewalls don't have quite the same meaty look on a 10". the tread section also looks small when you mount a 275 on a 10" given the size of the sidewall section width.
i'd like to fit a b-body diff and spring relocation kit to my car to cure the rubbing. then cut the outer inner fender and fabricate a new section that allows more room.
probably pump the fenders some more when i do this (i pumped them out a bit before, they were quite dished in, i guess from the above mentioned old dodgy rust repairs).
then fit a 295/50/15 and lower the rear. 295s look great on a 10" rim.
here's some pics:
as for handling? i run goodyear eagle gtII tires, and think they are pretty average handlers.
my car has no sway bars and old crap shocks up front with the stock small-block torsion bars.
and heavy duty rear springs with good shocks.
my car handles like sh!t... ha ha
cheers,
aaron