Thank you Lewis and Snowtoy for your comments. Well I know it is not the ignition coil now. I replaced it with a good spare that I had. Lewis it does makes since that the CAT could be clogged but the only problem is that it does not have a CAT anymore. I did find a small vacuum leak that I repaired on the cold start injector which I thought would surely fix it but it didn't
The misfire is much less but the truck still does not have the power to keep up on a flat highway. Also, when I ever so slightly let off the pedal from WOT, it stumbles very briefly then smooths out. Weird I must say.
