Engine runs rough?

Driving in a parking lot and truck started high idle had to put it in neutral and hit the gas to idle down. It did this three times then it wanted to flood and die shut it off. Restarted it twenty minutes later it ran fine for a week then went to go shopping and got three miles and stopped at a stop sign and went to go again and it died did not want to restart. It flooded waited about ten minutes started and had to keep feathering gas to get it home changed the fuel filter cap, rotor, plugs, wires. Now it only starts and idles rough and dies then does not want to start again wait about ten minutes and it does it all over again as soon as I shift it dies and smells flooded.

Ihave a 93 f150 with a 5.8 in it and I have a problem with it when you get it on a load it runs lean and starts run bad temp starts rising I replaced comp, map, injectors, fuel reg, one way vavles on the tanks, fuel filter, tps, plugs, wires, coil, had ingtion module check, I ran it with the scanner on it and when it does it my timing retards its self down to 12 degrees and im running out of options anybody know anything else to try

I tried unpluging the knock sensor and that didnt change any thing I also checked fuel pessure and it is good

I put a vacuum gauge on and the vacuum is good

Its a 93 it dont have a crank sensor does it it has a pickup sensor in the distibritor is that what your talking about?

I replaced the plugs, wires, rotor, and cap and now it runs rough. It starts ok and seems to idle ok but when I start driving it, it acts like it's missing? Could I have mixed up the plug wires or is there something I'm missing?
Thank You

Thanks for the reply but I found a sparkplug wire not firmly set and all is ok