getting back to topic, I know the concern is the ECM but why couldnt or has anyone tried to see if Mopar performance has a drive by wite throtel body for the 4.7 to then use the conventional ecm like the 5.7 does. Or could you just use the FAST system to do both fuel and spark?? I have a 4.7 flex fuel in my ram and it sure would be real cool to run the same motor and fuel system in my abody, flex fuel and all.