Lift kit
 

I want to lift my blazer 2 inches or maybe a little more, I have 33 inch tires without a lift right now and the tires are new so I don't want to buy a bigger set. Will 2 inches be about right? And what brand? I don't know anyone that's lifted their own truck so anything helps, thanks!

2 inches probably wont do it without some major fender trimming....or a body lift as well.
I have 9 inches of lift and i still can rub with the right conditions.
do some searching and see what others have done. Not saying you cant but it will def be tight.

I have 33 inches on now without a lift, why would it rub if I got it lifted?

Sorry.....i thought your truck was a 97 not an 87...that would make a big diff guess i should have read that better.
I would look at suspensionconnection.com
They might have something that will help you