06-04-2017, 09:35 PM
Those are the 2 boost ports cut into the cyl. Your piston needs to have 2 holes that line up to feed those.
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West bend 820 porting question
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West bend 820 porting question - by Kevin Davis - 06-04-2017, 08:30 PM
RE: West bend 820 porting question - by steve welte - 06-04-2017, 09:35 PM
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