It was a Construction / Land Clearing, Back in 1986 of the top 500 in the Nation we Ranked 250th, I oversaw the Light Fleet , had 179 units total. Had everything thing that FORD offered , Town Cars , CV, Vans , P/U, Bronco , full size an the smaller 2's,Explorer's even a few T-Birds, LTD cars an wagons Rangers the whole deal !!!!,,,,,,,,, An the cooling system test was a flop , He cooked the motor in a little over 40 miles

 

I am having similar problem. E-150 the firing order is listed as ...1-3-7-2-6-5-4-8. But I am still getting no power and a bad running engine. My mechanic believes that the injectors are bad. The engine is a Ford 5.8 liter. "Very confused" Can anyone tell me how to test t or and diagnose this engine?
I am getting the proper fuel pressure and all new wires and plugs. Can the timing chain be bad? 134,000 miles and always run with Mobil 1 oil.
Thanks!!!
-Charles