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Discussion Starter #1
i am needing to know if i need to bottom tap the head studs and if i do what will it help with
 

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Discussion Starter #3
bump

Bump.. need more opinions
 

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Shiftin Fool
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1,185 Posts
i didnt tap the holes on my truck nor did i tap the holes on the NGM race truck. both trucks have seen alot of daily driving and both trucks have seen over 60 psi! heck with one of the turbos we tested on the NGM truck we saw close to 80 psi.
 
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