Well I need some help here.
I've got this thing all back together and went to fire it up and can't get it running right. I've checked and rechecked the timing and distributor wiring (both versions) and no luck, it has a terrible miss in it yet it's not back firing at all but it won't get out of it's own way.
I'm thinking that I have what was an original 5.0 engine but when I first bought the car I pulled all the plug wires off to clean them and that's when I found out that there were 2 different firing orders for the 5.0 and the 5.0 HO ? I guess when the PO replaced the cam ( x cam) it also changed the firing order to the HO order and when the firing order gets changed the fuel injector order must follow .
So I'm wondering if this used engine wiring harness I bought might not be a standard 5.0 harness and the fuel injectors are not timed with the spark plug timing. Does this sound reasonable?
The 2 firing orders are close and my car will run on either but not very well.
It definitely had the HO firing order before.
I have the original factory 1988 factory wiring diagram but not the HO.
Does anyone have a diagram of the fuel injector wiring back to the eec
for an HO engine?
This thing is driving me crazy? I'm so close but so far.
I also told you it was an easy fix on my aluminum radiator "NOT" boy did I mess that one up, just couldn't get it to stop leaking until I finally ruined the radiator and had to buy a new one.

live and learn!