Took it down Monday, they did the usually "Exhaust, Emissions Codes, yada yada" But they said they did the TSB of the Neutral Misfire and Crank Position relearn...100 miles later..CEL...Misfire #2. I swapped coils last night on both sides cause I could remember which bank is which..(if someone can refresh my memory on this). I got in car, drove it, 1/2 mile CEL came on car went into limp, just plugged SCT in so I could see if it would data log what was going on with the stock tune, started data log, then it cleared up, code cleared car started driving fine. Told the wife to drive today and see what happens. Also if you notice on the firing order of the 5.0 is that #2 and #8 are 180* out from one another and I get misfires from both cylinders. #2 mostly. I'll keep you guys updated. Thanks again for you input.
Terry I may pm you later on some more info on the Vortech.