200s cam carb upgrades

[PAPA250r]

What's a good cam and carb upgrade for the 200s ?

I already have a fresh 10.5:1 piston

I know the engine is limited with the centrifical clutch but want to get the most out of the piston

thanks

[TheRealFatShady]

Cheapest option I'd think would be an XR 200 cam and carb. Performance increase, and both can be had real cheap.