Don’t look for F-150. Search for Ford 300 straight 6 people. It has been years, but my class worked on a few of those trucks with that engine. I remember finding some pretty good tech out there at the time. Unfortunately, my saved work favorites went away when I retired. The one problem I remember those trucks had over and over was the power steering pump shaft would get loose and the serpentine belt would walk off the pulley every few weeks.
We used to have a Ford EFI 300 guru over on the M715 zone. But, he bought a diesel Rabbit p/u years ago and went to live the unplugged hippy life out in the desert.
Your point about 13 year olds is so true. I have a large number of vehicles that span wildly different interest and types. Amazingly enough I have found that this site and Miata net seem to be the crossroads of the automotive internet. I get more and better BMW or Porsche tech on the Miata site than on dedicated forums. Better 6.2 diesel tech here than on Steel Soldiers sometimes. The current events of the world that are posted here or on Miata net are more relevant and accurate than any news channel will tell you as well.
Sure, Pirate or I8mud might have tech, but you have to wade through so much BS to find it that normally you don’t or it isn’t worth it. This site is very rare in my opinion.