G320RC reed cases and full mod G320RC reed case engines are available. 

http://www.oneillbrothers.com/6304-9-1hp-full-mod-g320rc-31-8cc-tr-obr-reed-case-engine.html

http://www.oneillbrothers.com/rc-car/engines/obr-reed-products/6305-tr-obr-4-bolt-g320rc-reed-case-complete-with-bearings-seals-petals.html

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