1993 Chevy S-10 Holding down gas pedal to start and stay ru

My s10 recently started acting up, the only way to start the truck is to hold down the gas pedal, once its started you must continue to hold down the gas pedal or it will stall. If you put it in first gear with the pedal to the floor it will only go about 15-20mph. I was told that the engine may be getting flooded by a faulty fuel injector. How many fuel injectors are there on a 2.8 liter? I see 2 on top, is there any others I need to check for? Any other items that should be checked? Please help!