Mitch, Here is a link to page 14 of a 15 page thread I started here several years ago. I never got finished but there is a lot of good information and links to other goo stuff. The basic idea was to build a turbo injected 292 using a turbo from a 1981 Firebird and TBI injection from a 1989 GMC 305. I built a Megasquirt and rebuilt two laptops and bogged down trying to use Windows and get my head around the Megasquirt software. There are several old threads here that might help you. Our search feature sucks so they are hard to find. Two ways that work but take time are to Google a topic and to search the posts of guys that post a lot and check the topics. Efi dyi did a lot on Megqsquirt and EFI conversion.
LINK


"I wonder if God created man because he was disappointed in the monkey?" Mark Twain