Cam Question
2) You will want to get headers first.
3) You will need a high stall converter first as well. The bigger the cam, the bigger the converter should be to optimize. Note: My car is an example of too little stall for the cam.
4) SEARCH is your friend.
5) To even attempt to recommend a cam there are things to take into consideration such as your setup (which by your sig is not cam ready), your projected use for the car, personal tolerances, your goals, etc etc.
6) You will be lucky to get any real responses to a question like this.
Edit: I might as well tell you this. You can go pretty F-ing big nowadays on stock bottom end (SBE) motors. Check out the G5X3, G5X4 (juggernaut), teh T-rex, etc etc to see how big you can go. The thing about them is that you have to match the rest of the car to them, and this does not mean the bottom end. This means exhaust and gears/converter size and supporting bolt-ons more than anything else.

We (and by we I mostly mean people how know a lot more than me) need a lot more info to work with. Simply telling you the biggest current cam you can fit probably won't help you.

