I picked up a used V2SQ S trim head unit on ebay and am in the process of getting it put on a LT1 street rod. I need some pulley sizing information. Looking to run 6 psi or so, wondering what Vortech uses in their kit???

 

The kit I had came with 6" crank pulley and 3.33 blower pulley. On my old 355 it mas making 8lbs. boost, On the the 385 it's at 5lbs