What kind of induction kit did you install? Turbo? Supercharger? How much pressure does it produce i.e. psi? What are you using for engine management or fuel control? What other mods have you done to the car?
Without knowing this no one will have a clue on how much power you're producing. Even so, if you really want to know, take it to a dyno.
What do you mean by a "cam belt"? If you mean timing belt then it doesn't matter that it has an auto gearbox. In order to remove the timing belt you have to remove the crank pulley. There is a pulley holding tool that fits in the big hex slot in the pulley. You can use that or take it to a shop and have then use an air gun to remove the bolt.
The tool looks like this:
To remove the cam gear you use another tool.