Question on average HP gains with aggressive cams.

Currently looking at new cams for my 04 mach 1, looking at a custom grind from bullet cams. I will be install myself and doing the degrees of the cams. Just a question after I finish and get it tuned what will I be looking at HP wise, Im hoping to be around 360whp has anyone ever done this to their mach's or has anyone else seen anything similar done to a 4.6L 4v.... (EDIT: I also have 4.10 gears/kooks LT headers/offroad X pipe/CAI