The 3.0 is the pulley size on our superchargers. Stock is 3.8 and every .1 is about 10hp. Since you have a l26 you would have to do what is called a top swap and swap the supercharger, lim and heads over from a GTP. Then you need lots of supporting mods to get there. Honestly if i had a non-supercharged car like you I would look at a zzp turbo kit. It'll be about the same money wise and make (possibly) more power.