put on some mods and i am just curious as to wether or not i need a smaller jet size or not? the kit came with a 170 main jet and modified tube. my problem is I am out of air screw ajustment and idle adjustment and still cant get the rpms down! at idle!
any suggestions please.

 

Make sure the slide is not hanging up,check for air leak at manifold,try turning mixture screw,if you cannot richen the mixture enough you will have to try a larger pilot jet.