Dave, just curious. How much data on 99-04 4.6 Ford motors have you seen on a wideband? Have you ever seen this year engine run 11.7:1 all the way to the top on an out of the box motor? I have spent countless hours at Dynolab, Modular Powerhouse and Team Ford with cars on the dyno's and can tell you first hand that stoich on an OEM Ford motor is HARD to find on a stock motor. Not sure about Chrysler.