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how to add inverted system to a radial

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pigpenracing

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I know where 2 biplanes are with Continental 220's. I asked the owner on one about flying inverted. He said it does not have inverted systems, they would have to be added. So what needs to be done to put inverted fuel and oil on this engine? What would it cost? I don't know anything about a radial.
 

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