I had a 96 F250 5.8l with similar issues. Mine had very little power also. Ran a fuel pressure test and found one pump @20psi and the other even lower. Replaced both pumps and issues resolved.
Did it smell like antifreeze?? Sounds like maybe your heater core burst and it was "smoking" hot coolant... If this is the case, more than likely now all your windows will have a "greasy" film inside....
ok... everyone has an opinion and here is mine. There is a reason why Chrysler has gone backrupt TWICE. Personally, I will NEVER buy another vehicle from them.... Just saying...