Reed:

http://www.oneillbrothers.com/6310-9-4hp-full-mod-g340rc-34cc-2mm-stroker-tr-obr-reed-case-engine.html

PIston Port:

http://www.oneillbrothers.com/6309-full-mod-zenoah-g340rc-34cc-engine-2mm-stroke-crankshaft.html

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