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Old 04-14-2006, 01:54 PM
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boneheaddoctor boneheaddoctor is offline
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Join Date: May 2004
Location: Hells half acre (Great Falls, Virginia)
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Quote:
Originally Posted by Hatterasguy
After hearing Brians 617 purr with a fresh head job, ie new valves, pre chambers. Also he is betting that he breaks 30mpg this summer on the better summer fuel.

I think if you are having running/mileage issues with your 617 you are barking up the wrong tree. At this point in the game a lot of these engines are getting pretty tired.

If the head has never been off I'd think you gain a lot more by pulling it and sending it off to Metric Motors for a valve job.
I believe he can do that on the highway. I've done it twice on my W123 with 150K miles on it.
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