buying a 95 blazer

hey everyone. im thinking of picking up a 95 blazer that for all i can tell looks pretty solid. i would appreciate if anyone could give me the heads up of any reoccurring and common problems with this particular truck that i could inspect before i sign the deal. im obviously looking for the expensive ones (problems that is). thanks.

Main CPI Injector failure and interal line kit

Ask if it has ever been changed.