Whats a good tire size?

[90notch_5.0]

I have a 90 notch and will like to put some drag radials what will be a good size?
Somthing that will look good from the back a beefy i have 15 inch wheels

 

[86bluecobra]

275 50 r 15 would be my pick. I believe i have 275 60 r 15's and they look great imo. have a look in my car domian page and judge yourself.