1997 banshee starts just fine 3/4 to wot bogging and sucking large amounts of air thro kn air filter with filter sock on, you can feel the sucking of the air. Bored 90 over wisco pistons dyna tek cdi brand new, curve selector does not change the revs when bogging or idling stock pipes,heads, new stock coil, new stock stator, new stock reeds, carbs 25 pilot jets 240 mains. Compression is 125 both sides needle is in on the 3rd clip. If it not a carb issue what could it be?