Buying some bfg g-force drag radials.....what size should i get?....i have a 92 hatch, and i have two sets of wheels.....the stock 13's steelies and a set of stock 99-00 si wheels.

car has b16a, I/H/E planning on a 75 shot within a month.

any suggestions will be great. I'm tired or 2.5 60ft's

 

225/50/15 and some light 15x7 wheels.