I'd switch carbs for sure. If you want more top end, wait for a set of Nate McCoys new pipes. Also look into a set of shearer BB pipes. SB's seem to be ok on 4mils, but any bigger and a BB will be the best choice,IMO.
Never been coated/used. Has a lil surface rust on it, will be blasted before it's shipped. Weighs in at about 9 and 1/2lbs. Drag use only. 400obo.
It won't let me upload the pics. I will e-mail pics to anyone who needs em.