Hi,
I've got an '86 F250 w/302 and 180K miles that was running fine. The other day as I was towing a friend's van it started loosing power, back firing (the little internal ones) and finally just stopped.
I was able to get it started again (though it's a chore), but couldn't get it to rev over 1500 rpm w/no load. It just bogs down. Since I recently bought the vehicle and didn't know it's maintenance history, I had a back yard mechanic friend of mine replace the timing chain and gears as well as wires, rotor, coil, cap, plugs and fuel filter. And of course it is still running crappy as before. Oh, he also tested the control unit and that appears OK.
Since I don't know anything about mechanics and my friend doesn't know anything about computers, I'm asking you all for help... PLEASE! Any good advice?