Which is why I was asking about other Volvo engine blocks. Like I said, I'm aware of the the issues with doing this kind of work to a PRV, I was wondering if there might be a substitute Volvo V6 available that would handle more pressure. As I also said, I know the topic's been researched thoroughly, so I don't expect to hear any results from this idea, but I'm wondering what people found. >Put 15 pounds of boost into a PRV and you will end up with with a big >box of Volvobits cereal that stays very, very crunchy in milk. Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/DMCForum/ <*> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/