Yes that's the BIG problem, the computer won't handle these upgrades and it's not comaptable with available tuners, so you need to convert to mass air and use one of the truck MAF computers.. assuming you have an E4OD tranny. Then you need to get a chip burned by somebody that knows what they are doing or add a tuner and learn to program it yourself. This is the "$2k fuel system" upgrades I was talking about, bigger injectors and all the control upgrades needed to make them work.