New Blazer owner with some ?
 

I just recently purchased a 1992 k5 and I love it. It's my first blazer so I don't know much about them. I would like to lift it, but I don' t know what has been done to the vehicle since it has had three previous owners. It currently has 305/70-16 tires on it without any rub. Should a stock blazer be able to hold this size or has the suspension already been changed? I cannot tell whether it has a body lift or suspension mods...so any ideas or suggestions would be greatly appreciated. And what would be the best way to lift it? Thanks