pulley size for paxton 1000rr

The setup will be a 98 gt, pi intake, mhs stage 1 blower cams, 90mm lightning maf, 36lb injectors, bbk plenum/tb, afm powerpipe, intercooled....I would like to make 10-11 psi just not sure what pulley size would get me there...paxton pulleys range from a 4.50 to a 3.25 at superchargersonline thanks for any help.

Well let me revise my question

I have decided meth will kick an intercoolers butt any day of the week, so what size pulley would I need on a non intercooled set up to get around 10-11 psi. thanks.

On a side note I don't see why more people don't use meth injection..I believe it's because people just don't understand how it works or what it does..but I mean damn, it's an easier install and makes more power and cost around the same as an intercooler set up.