hi officer

i have a lt1 with a vortech s-trim, the engine and sc have under 5000 miles. i removed the discarge side tube from the sc to the throttle body and there is a very thin film of oil on the inside of the tube for about six inches, there is no oil on the aluminum elbow. its coming from inside the sc. is this normal or is a seal leaking inside the sc or too much oil going to the unit? or am i way off? thanks