Questions about a 92 I'm looking at.

[sljs3413]

I'm looking at a 92 with 30k miles. Car is in great condition and the price is right but my concern is the owner claimed that they have never had to do anything to it and I mean nothing besides brakes and tires. I know those injectors fail but any chance those injectors have held up and will continue If I don't use the ethonol gas? Should I be worried that nothing has been done under the hood? Thanks guys