I am building a 331 and I have a novi 2000 to put on it. I am looking for around 15psi of boost and I am trying to find a pulley combo to get my those numbers. I know that Vortech makes a 10rib 8" Crank pulley and I was planning on running the stock supercharger pulley. My question is roughly how much boost will this pulley combo make at around 6200 rpms? Also any idea about what belt size would work?

Thanks
Jeremy