i am thinking about buying some 15x8 cragar super stars with 3.5 backspacing for the back and some 15x6 with 3.5 in backspacing.. then getting some bfg radial t/a 275/60-15 out back and some 205/60-15 for the front..what i am asking is if the front tires are too narrow and if so what do you suggest and will the 275's fit in the back.

 

i see no reason to get any skinnier than 245 in front unless you just want it to look a certain way.
get 15x8 fronts and 15x10 backs, it will look much better

 

Stock tire size for 15in rims is 215. I had 215's on my fronts and 235's on the rear, i cant remember if they were 50 or 60's though. I dont know why on earth you would want such a skinny tire, unless its for drag racing though. 205 is awefully small for our cars driving around. I have 245/50/16's on all 4 corners in the T/A. I wouldnt go smaller than stock unless there is a purpose.