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You really can't use OEM ECUs for racing unless you can get into the program and change the target A/F ratios and the strategy whose objective was related to the control of emissions, not WOT operation. GM guys can do this easily, but not so easy with Mopar ECUs. I have done it but it wasn't easy nor legal for street operation. If you are in a state that does not have strict emission laws the way to go is with an aftermarket ECU that you can tune.



I finally gave up and went to a standalone setup that I could control. MUCH better!