This is my first banshee. Its running K&N w/ outerwears, what looks to be a fairly aggressive port job, bored, T-5s with 320 mains and needle all the way down. Im at about 5000'. It is pretty snappy at the start but doesnt seem to hit the powerband all the time (feels almost like a rev limiter). Also, it smokes pretty heavy at idle and i cant seem to change the rpms when i turn the idle screws. Any advice will help, thanks.