Dodge Cummins Diesel Forum - View Single Post - VIDEO: MP8 - Shimming the 6.7L fuel valve
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post #31 of (permalink) Old 12-17-2008, 01:14 PM Thread Starter
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Without a pressure box (MP8 / Powerpuck) I believe the electronics will back down at ~23k on the rail so shimming doesn't gain anything.

If you're not going to put a pressure box on I wouldn't bother with the shimming process.
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