bone stock

Got a 94 f150 has 143k miles auto tranny, guy I got it from did not take care of it. Just got it, had an issue dieing when I put it in gear, fixed that by putting tranny fluid in it, took it for a drive everything was fine shifts good no issues, got it back home ( roughly six block drive) let it idle for awhile then went to move it in garage heard a slight knock like a fuel knock when I put little pressure on gas pedal, did it 3 times. (Garage is a tight fit with fence in the way) every time I went from drive to reverse I heard it just for a split second, shut it down to check oil, was a quart low, topped it off and went to start t again and it won't start? Didn't sound like it was even close to starting. Went to work came back roughly 12 hours later and it fired for a second then died. Did this a few time before I got the ether out. I spray intake and it'll start then die, do it again and this time I mess with the the throttle it seemed to kill it immediately. It seems to me like a fuel issue but b4 I shut it off and it wouldn't start it ran great I'm lost any advice would be greatly appreciated