Suzuki Repair: suzuki sidekick, suzuki sidekick, technical jargon

Question
Idles bad,& when you push on the throttle it tries to die.When you push on the gas it just makes a big whishing sound.

Answer
Not enough concrete data and measurements to diagnose.  Sorry, just like the doctor needs things either described in his technical jargon, or measurements, I'm stuck with too much indistinct description to narrow it down.
Fuel pressure? Is there a change when the pedal is depressed? How much?  How does it compare to servce manual values?  Stuff like that.