Karl,
Looks like the community is now using a Bosch part (BIP373) in place of the VB921's.
Bosch BIP373 Coil Driver Mod-Kit DIYAutoTune.com
The ECU plugs on the MZ look unlike anything GM I've ever seen, nothing like the GM weatherpack stuff anyway.
If you're using the igniter I am from the 95 Avalon, you're using the same igniter off the 2JZ/1JZ w/6-COP. It's my understanding, and don't quote me on this, those guys start having ignition issues past 500-600hp. That seems well within the goals and realistic abilities of most V6 MR2 owners
Looking at those wheel shots Mrdosedriver717 posted, doesnt look like it would lend very well for the GM DIS setup? Too bad the MZ wasn't like the UZ, those guys ignition wheels are seperated from the timing belt cog and they're constantly making new/different wheels on those motors.