Have a look over here, too, for more down and dirty ground up custom MS install and tuning.
Megasquirt MSEXTRA / MS3EFI • Index page
I hate to say negative things, but electronics packaged for hotrod guys are way too limiting for me. I know what can be incorporated into the ECU, and want the option of doing just that. Did you know that from '85 (I think) on mopar put the voltage regulator into the ECU? So after you crank it up, it gives checks that it's charging, and adjust the charge for temp, run time, battery condition and a bunch of other variables. I don't want that, but shutting off the A/C compressor beyond 1/2 throttle or 3600 RPM is a nice little feature. I'm using the fist idle switch to turn the fan on full speed if engine temp hits 200 deg (if my fan speed controller isn't working). I was thinking about PWM-ing my fuel pump down when full capacity isn't needed. Also, closed loop idle air functions...Maybe it could even turn out your tail lights when your running from the cops!