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For this round of testing, Westech's Steve Brul outfitted our 406 with an air hat. This deceptively simple apparatus measures the flow of air into the engine. Since loss of valve control disrupts this airflow, the air hat measures that as well. The evidence of this disruption was graphically demonstrated.
Valve Spring Tech - Rev Happy

 For this round of testing, Westech's Steve Brul outfitted our 406 with an air hat. This deceptively simple apparatus measures the flow of air into the engine. Since loss of valve control disrupts this airflow, the air hat measures that as well. The evidence of this disruption was graphically demonstrated.  View Related Article

 

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Source Interlink Media © 2008 Chevy Hi-Performance,
Source Interlink Media
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