Im wanting to lift my blazer 2" and i found a kit on ebay with shackels and torsion keys. but my friend says ill need a camber kit it for. Do i really need a camber kit if i get the lift kit. or is there an easier way to lift it

 

The upper control arms have cam bolts to adjust the camber, get an alignment after you lift it. Torsion bar keys and shackles are the easiest way to get some lift.

 

i was thinking shackels and strut spacers

 

is your blazer 2x or 4x?
4x just adjust the torsion bars to gain 1.5" anymore and you will have issues...just measure before and as you do it to make sure....there is a how to around here that will tell you what you need to know.
the rear shackles will get you 2 inches in the rear no problems.

all in all its the cheapest 2" lift you can get.
i ran mine awhile like that before i went full suspension lift...only issue i had was the cv boots slipped off....easy and cheap fix. there is a how to on that too.

with just torsion bars you will only need an alignment...i have the stock camber bolts in my ride with the 5" suspension lift...only issue i had was some camber slipping...again easy fix once i figured it out.