I've found a local guy that has got a 6-71 blower forsale cheap and I got to thinking about getting it to put on my 383. I dont really know anything about a roots blower and had a couple questions. First, would a stock crank and rods live if I kept the boost low? What kind of compression would be required? Anything to lookout for when buying a used blower? I just need a basic schooling on these things. Anybody care to enlighten me?