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This topic has been beat to death over the years on here. PCV valves are very helpful on street engines to help ventilate the crankcase. PCV valves flow max amounts at low vacuum(wot) conditions. They flow less at closed throttle(high vacuum) conditions....check it out!   
https://www.google.com/search?q=pcv+valv...mp;ved=0CCQQsAQ
Me thinks you have the flow backwards, maximum at idle to part throttle, no or almost no flow at WOT   that is according to all the vacume gauges I've used over the years 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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