water pump, air pump, crank pully is all you need to get it off, you might want to remove the fans though to give you more room, you will need to rent a 3 jaw puller from autozone to get the crank pulley off though, get the bigger of the 2 it will make it easier.

 

you need to take off the stock intake or your cold air intake, then drain the radiator, take off the fans and the water pump, then the harmonic balancer and you should be good to go. What a pain in the butt.

 

It really wasnt that hard. I didnt take out my fans. I got the harmonic balancer out with just a brass hammer. Before you start i would get a new water pump gasket because if you just put the water pump back on with the old gasket you might be replacing another opti soon. There is 6 bolts for the water pump, like 4 for the air pump and when you take off the harmonic balancer take some chalk or something and mark how you got the balancer off so you can put it on the same way it came off.

 

When I replaced mine last year I used a Autozone opti & ordered a MSD cap & rotor. I have a 94 formula and when everthing arrived it had the hoses and instructions to make the opti vented. I haven't had any problems.