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Old 05-30-2006 | 07:40 PM
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peewee ridge racer
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Joined: May 2006
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From: Park City, KY
Default ringed engine break in?

Could someone give me some advice or just tell me how to break in a ringed nitro air plane engine? the engine is a GMS 120 using 15% nitro and 16% castor/synthetic oil