Mopar OEM EFI

Thank you very much for the replies. Of course, I've got more questions.

Is the Mopar ignition system integrated into the ECM? What type of signal is available from the distributor? I'm sure there must be aftermarket options.

I've heard a little about the Megasquirt ECM. Looks very interesting. I was hoping to use the OEM ECM to minimize the learning curve for tuning. I'm planning to drive the car as opposed to any sort of racing effort, so the flexibility of tuning the Megasquirt box may be a little less important to me. Looking at the donor truck, I did not see anything I could identify as a mass air sensor, so I presume the Mopar setup is speed density or equivalent? Might be important to know if I'm searching for an aftermarket ECM. Also, does anybody know what size, (lb/hr) the factory injectors are?

Still, sounds like the Mopar ECM does indeed integrate a lot of systems that will not be present on my Cuda. Megasquirt may simplify my installation. Gauges will likely be aftermarket, Autometer or equivalent. I'd like to run a manual transmission, possibly a Tremec, or maybe an Aisin R154 using the 3.9 V6 bellhousing. The car currently is an automatic and if I remain with an automatic, I'll probably use a 904 that I already have. That brings up the issue of the ECM once again as I understand the Mopar unit controls the overdrive automatic. Might need some loopbacks to make it work?

Looks like I've got a lot of learning to do, thanks for your help.