Crankcase Evac Pump

Rob R said

I run two breathers and a PCV and have no issues...this low deck is 15-1 and turns 8200 rpm and is street driven..

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What's your leak down numbers? I've got 14% on 512ci. Only turns 6000 RPMs. My builder the famous Joe Sherman gave me a $3 breather breather and said PCV is bad idea. I've tried everything suggested accept a vacuum pump.