razor, most 245/50 16 radials run about 28lbs. instead of narrowing a nice set of rims, maybe you can run some drag radials on the front. they gotta weigh less than regular radials. i have a set of m&h race masters that are super lite. i noticed the nitto drags are v rated. that means they gotta have somewhat stiff sidewalls. i've heard of guys running these on all four corners for road racing purposes, so they must corner decent enough for street use.
just a thought, i dig stock appearing and your car presently has that look. big and littles look like crap on f-bodies.
later...