I'm considering buying a 5.0 that has a TVS with an 82mm pulley, CAI, headers, and high flow cats, and VMP tune. On that pulley it dyno'd 630 rwhp at 13lbs. I have a couple of questions. Is 13 lbs of boost high for that size pulley? Maybe the cats are causing the boost to increase? From what I read I don't need to worry about the hp being unsafe, but is 13 lbs high on stock internals?