Hey...Welcome to the forums!!
I guess the first thing you should do is check out the forum and read up on what you wanna do.
Don't drop pulley sizes without the proper mods you'll screw things up if you do. You need more than just a PCM you might want to put headers and a down pipe on your list as well. If you look thru the for sale section you might be able to find a good deal on what you need or want.
There is a front O2 and a rear O2 sensor.
If you do start to mod a lot consider a scanner and maybe a tuner so you can tweek things.
If you have questions about your engine post them in that section because they might not be seen in a different section.
You should like it here.
