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An engine at full throttle makes very little vacuum. A vacuum-powered crankcase ventilation system is therefore pretty much inoperable during a race. I don't know where his +32HP comes from, but hey, he needs vacuum at full throttle anyway. I wouldn't expect a MPG boost in a road car, since few ecomodders are at full throttle for extended periods of time.
When I drive to my buddy's house, I switch off the engine a quarter mile from his house, make a few turns without power steering, and coast into his driveway. I almost hit his front porch a few times, since my vacuum brake assist was inoperable. I'm probably going to install a vacuum capacitor or pump on my Insight so I have power brakes during extended EOC.
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