Ok i am posting this again because i found out that my heads have been milled .005 to .007 just for cleaning up purposes. Right now i have a little 212 cam and 5.3 Stage 2 heads. Valve sizes 2.02 in., 1.57 ex. 66cc chamber. Flow ratings with a .600" lift: 305 cfm intake, 223 cfm exhaust. I want to know if i go with either the f-14, g5x2 or 3, or the ms3 if i need to flycut. If so what would be the biggest cam i could go with. Also what kind of horsepower gains will i see. Also rest of the mods are in my sig. Thank you