Ok here is what I got. I have a 1993 f150 xl 6 cyl. the truck was parked i'm guessing for at least 12 years. it has 32,800 ORIGINAL miles on it. I have replaced the fuel tank/pump/filter/regulator/fuel rail/injectors...and that was just to get it to start. I have not got it on the road yet but i'm burning a tank of fresh gas with seafoam mixed in to see if it helps fix my problem. new plugs were put in yesterday. the truck starts fine but if i press on the gas (in park or neutral)
the engine will rev up to a certain point then starts to sputter and sound like it is bogging down. not sure if they have governor or not but i know what that sounds like and this isn't it. the other minor trouble i'm having is the key will lock the driver door but not unlock it.

 

I would look at the TPS....there is a thread here called "Testing the TPS" or something of the like.

Have you tried to pull codes?

Welcome to the forums. 33,000 miles? Lucky man.