Well I use a lot of wt668 clones among others between 12 and 16mm for gopeds and 43-49cc pocket bikes. So I am very familiar. So to be adapted, what intake is used?? My favorite part isnt the tunability as much as it doesn't matter if they are at any degree possible and will still run flawlessly.
Maybe after I modify this carb I will jump straight to , as I call, a pumper carb. Or saw carb. Lol