21m carb

iv got a malossi 21m carb and im running a small KnN filter, when full frotal it bogs, would anyone be able to help?

 

i thought it mite need upjetting its only got the standard ones in?

 

yes it will just need upjettin by a pack of jets instead of one then you dont have to gess the size and can fine tune it :good:

 

I would put the standerd box back on tbh get more MPG