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Author Topic: from 4-2 open to 4-1 - any concerns?  (Read 603 times)

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Offline 1974blaze

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from 4-2 open to 4-1 - any concerns?
« on: August 08, 2010, 02:12:23 PM »
title says it all.  a 1975 cb750k. should i worry need to make changes in jetting or air to suit the switch from open 4-2 pipes to a 4-1. currently the 4-1 has no baffle thought i  would build a little glass one.
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