few things i would recomend.
Go get your sc'er ported.
http://www.stiegemeier.com/index1.html
Depending on what sort of power you want depends on what you should do ..
You can go with a 2# upper pulley and a 4# crank pulley.
You will need to get it tuned once you change out the pulley's I would recommend SCT myself. Not because they are an advertiser here, but they are one of the best.