Yeah as Krishy said bud.
Changing cams over needs to be at the bottom of your list. Plenty other things you should look at first.
Bigger injectors, fuel pump, ECU upgrade, better fmic, exhaust, bigger cans (actuators) (or even bigger turbos) then take it to Willalls and get the thing tuned.
Then you'll have to start thinking about oil catch cans, etc.
Unless you've already got all the above, don't even worry about cams yet.