Gen III Hemi Swap Questions
So, here's your quandary...the Eagle motor is 390-ish net HP right out of the box, so it's not far off your target. However, it's VVT, so either you use Hotwire Auto or Modern Muscle to control the electronics and keep the VVT functional and live with the DBW throttle body, or you give up some power by locking out the VVT and use an aftermarket scenario (Megasquirt, Holley, FAST, etc.) I have spent some time talking with David at Modern Muscle, and he almost has me converted to the idea of keeping my DBW setup, mostly for ease. With long tube headers, proper (no cats) unrestrictive dual exhaust, better flowing cold air intake and some tweaking of the fuel/spark tables, I should make 450 flywheel HP and have all the daily driver ease of use that I have in my truck. Functional knock sensors, full OBDII diagnostics, etc.
FTR, Holley and EFI Source are both working at getting their setups to run the VVT as well. It's just not on the table yet...