I want more power!

I bought my 1981 P/U about three months ago. 2WD, 22R W/O Ac(I took it off for more room). I was thinking about trying to up the power a bit. I don't want the motor to get to out of hand. A carb and exhaust swap is all I had in mind. Maybe a cam if that does not do the trick. If you have done this before, give me some pointers please. Do's and Don'ts if you will. Thanks