i have my hands on a stock set of ls6 heads and am going to just get them port and polished, and also run a ls6 intake. i want to know the biggest cam i should run with this set-up. i am looking to spray the car with a 175 nitrous shot through a direct port nitrous system. so i just need recomendations on a cam and what hp i should be able to get out of those ls6 heads.