Straight guy but a little confused?

Well it sounds like you are curious about guys so I say why not try it? I mean you're at the perfect age! And you're not dating anyone. You should just flirt with a guy and get a date with him. While on the date just tell him what's up (basically that you're seeing if you like guys and he's sort of an experiment or whatever) and if you don't like it stay with girls but if you do like both then just go crazy.