DMC chose Volvo's F Series incarnation of the PRV for convenience, not performance. It's characteristics were adequate, not optimal. Volvo developed the F Series to maximize profits, and to meet US fuel economy and emissions restrictions. Better performing alternatives were available -- Europeans proved that. Volvo's North American version was adequate, not optimal. So, we are all driving around on adequate, not optimal, engines. Any owner who claims the PRV as installed by DMC has no margin for improvement denies the Alpine, the 505, and even Volvo's B280/Chrysler's 3.0. Of course a lot of European performance comes from increased compression, or even outright forced induction. Those options require much more modification than most owners are willing to invest. So are they doomed to languish at the rear of the pack with Granny in her 260? Let's assume, for the sake of argument, that they are. At least those who reach for better performance will go down trying. Seems a more admirable position than the Luddites who blindly raise their Blue Coils as pinnacles of development. And I once again point to John's website: A performance setup from him costs *LESS* than an OEM setup. Blue Coiler's are the ones paying a premium. Unless HEI lowers performance or is less durable (contentions that haven't been raised in this thread), the question isn't "why upgrade," it's "why not." Remember that a setup with 8.5mm wires will actually cost $5 more than OEM. I might almost spot a Blue Coiler that $5 just to put this thread to bed. Bill Robertson #5939 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/