What else do I need to get with this kit to run it "safely"?

My car is stock (magnaflow exhaust), low milage (~25k miles).

What jets should I run as well and between what RPMs?

I read lots of threads, and the guide for newbies.

 

What size of shot do you plan on running?

If you are going to go near or past the 150 horsepower mark. I would recommend a better fuel pump.

 

I plan on 50 for the first and then a 125 shot.

 

Try activating at 3000 and shutting it off at 5500 for starters.