[SandyC]

Yup I trust Charlie completely. He downloaded a bunch of data from the EEC and uploaded it to the Roush engineers in Levonia for analysis. The problem I had that caused me to bring the car in is that it was having a minor issue of intermittent difficulty falling into a nice idle. When coming off speed it would sometimes fall thru the target idle speed for a few seconds then recover to the programmed idle speed and eventually idle nicely. Evidently there are a couple of throttle bodies a bit out of balance plus perhaps a tweak to the IAC is in order and a throttle adjustment, among other things. This aint easy stuff because with EFI computers, sensors and fuel/air adjustment curves one thing will affect another which then affects another and before you know it you're digging a deep hole. It's tricky stuff. The engine is running great, I just want it perfect and that is the reason I took it to Charlie here in the Phoenix area.