WTB Procharger 4.75 pulley

[Bullitt3478]

I am looking to lower the boost on the D1 a little.I need the 4.75 according to procharger to make 10 lbs.I have the 4.3 now and its making 13 lbs at 6400 rpm's.Wanting to bring it down a little.Let me know what you have.Thanks