Quick advice while I research. Magnum Swap

To me the early obdI is easier for a do it your selfer and is a very forgiving computer. The obdII isn't that much more work and can take reflashing. But at the cost of a reflash or a sct tuner for the obdII you could buy a mega squirt 2 and have all the support and tuning at a one time price of $450 instead of a reflash of the obdII that runs about $350 or a sct tuner that costs about the same. And diy auto tune has very good support for the ms2 and several forums, and doesn't cost a dime to reflash well whatever the power consumption is of your pc.

And the ms2 is adaptable to pretty much any engine.