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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,578
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Take that barrel down to the machine shop that will work on your heads. Tell him/her to remove exactly xx.xx mm from the surface to make it true.
The xx.xx is the thickness of the shim you can buy from Porsche. It fits at the base of the barrel to make up for the amount you remove at the top.
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Porsche 2005 GT3, 2006 997S with bore-scoring
Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS
Disposable Car: BMW 530xiT, 2008 Mini Cooper S
Two-wheel art: Ducati 907IE, Ducati 851
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