[VADER SS L99]

There are certainly better cnc ported head choices but probably not many for that kind of money. If your on a budget then they look like a good choice. In any case they are going to help your setup more than the factory heads. When you factor in selling your old heads they are really cheap because most places ask for a core. I would recommend LS9 head gaskets and ARP studs or at least ARP bolts when you put it back together. Should end up making at least 20RWHP with a loss of boost. Add the boost back and your probably looking at 40+RWHP. Post results when done.