What should I upgrade

Bullitt

New Member
Oct 4, 2020
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I've finally worn out my first jug, I figured while I'm replacing it I might as well get some upgrades.

My engine is completely stock, apart from an iridium sparkplug and an engine mounted chain tensioner.
so, what should I upgrade? Any links are appreciated.

80cc, 40mm intake stud spacing.
 
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