Im buying a pack from SLP and it includes 1:85 ratio rocker arms, programmer, slp cold air intake and lid, and exhaust...i want a cam that would go well with the rocker arms and stuff but idk what size, i prefer comp cams, i want at least 30 or 40 hp gain, i drive it regularly...dont want it too aggressive that the car feels like its going to fall apart but enough to make me smile when i start it and get on the gas.. any suggestions?? I drive an 02 WS6