How to Choose the Proper Air Intake

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Hey All,

Brand new forum member here, been lurking for almost a year learning from other peoples questions...now I have one of my own!

I am putting a new TMEC 150cc engine on my scoot and it did not come with an air intake of any kind. No airbox, no nothing. I need to buy one, but I don't know what to get.

*The catch: My carb doesn't have have a mixture adjustment screw...
When I get an intake, can I hack the mixture adjustment by obstructing part of the intake?

Thanks in advance!