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I have a 89 gt with a powerdyne sc and i am having a problem keeping the pcv valve in the block it keeps popping out any knew why? I am getting blow by on the pistons and the crankcase pressure is to high or what. any help would be cool
 

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the pcv valve should be on the bottom intake manifold. ur gunna get blow by no matter what but you should prob take it out and replace it. pretty sure ur not supposed to clean it.
 

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Is the oil filler neck vented to your throttle body? It shouldn't be. Use a vented breather cap or vent from the filler neck to the air box. Then cap off the TB nipple. Also make sure the PCV grommet is tight. They get old and loose with age...

Good luck.
 
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