How much boost with these pulleys?
3.12 blower
Vortech S trim on an LT1 - stock heads/48mm TB
I'm finding threads where guys are getting 10lbs of boost - doesn't sound right to me but perhaps I have belt slippage??
I was told that these pullies, when I bought the kit, were setup for 6-7#'s. I have hard intake pipe and i'm seeing 7#'s thru the dyno pull.

