I have a Wraptor serpentine single belt system and I don't want to eliminate the power steering pump or any other accessories. I may want a crankcase vacuum pump for all of the benefits that brings. I have evac tube nipples on my TTi headers, so evac tubes are an option. Has anyone used an electric motor vacuum pump for the purpose of boosting crankcase/PCV system vacuum? I have manual brakes and I'm keeping them manual, so brake boost is not a factor.