Being a newb, can someone please explain the stages to me?

A stage 1 is Air Intake, Exhaust, Fuel Management.... what are the other stages?

 

I am gonna take a shot at this and am sure I will be corrected.
stage 1 = intake, exhaust, and fuel management.
stage 2 = stage 1 + cams
stage 3 = stage 2 + big bore kit
stage 4 = stage 3 + head work.
I know a lot of people dont include the big bore kit as a stage and say they have a stage 2 big bore which would be the kit + cams and then stage 3 wold be the head work. Hope this helps and correct me if I am wrong guys.

 

A good read here.

 

Awesome find. That article pretty much told me what I needed. Thanks!

 

Great read!

So since I got head work... I stepped into stage 3 territory? Mechanic said the high performance pistons (approx 1k) would make er a stage 3.

 

Double post...damn iPhone.