Tmeyers

Questions for those with V1 and V2 Stillen/Vortech Kits.
I understand the V2 kits have plastic pulleys and the
V1 kits have aluminum...If you upgrade to a smaller
pulley on a V1 kit from Vortech do you get aluminum ?

Also stock pulley diameter on a V1 kit is ????? 3.6" dia ??
whats the translation between diameter and psi/boost ?
Could someone list the diameters available and equivalent
pounds of boost (psi) for each and approx price.

Thanks in advance !!!