While perusing some Volvo mod and hacking sites, I came across a product known as Megasquirt, which is essentially a DIY fuel injection system. That alone was pretty cool. Even cooler was that it ran on a variant of the 68k architecture. Here's the link http://www.megasquirt.info/
Cool stuff. I don't think I have a need for it yet, as Bosch LH Jettronic 2.2 is adequate for my needs (the 89 turbos kept 2.2, while NA models went to 2.4). Figured I'd share.