Crower Stage 2 cams depending on other mods, you'll be between 155-165whp range. Cam gears and a little advance might net you 5 more...but you sacrafice a little. You can also pick up more hp with larger tb and Im-just make sure to port match them. All b series skunk2 im's come with 64mm port so get a 64mm tb to match (any larger is overkill). A good header-go with a 4-1 or something like a hytech, as now your head will be able to handle higher revs. Is it possible to hit 200whp na in a ls...yes, but then your looking at port and polish, built bottem end, etc...Kings had one running over 200whp-on oem injectors as well.