JRSC LS Pulley Size Question

[j200pruf]

Does anyone know the size of the snout pulley on the LS JRSC kits?
I just got a single alternator pulley kit with a 3.2 inch pulley on the super charger. I am thinking about going with the dual alternator pulley and want to make sure that I am not going to over spin it.

 

[j200pruf]

Well I am pretty sure that I answered my own question. LS components lists S/C GEN3 M45CCW 3.2-4R GSR is S/C GEN3 M62CCW 4.0-4R

I know that the GSR kits comes with a 4.0 inch pulley, I guess the guy I bought this from was wrong about it being a 9psi kit.