I was looking for a long time for a reasonably priced Electronic Fuel Injection controller. There are links below to different pages I have found, but the real answer came in the March 2004 Car Craft Magazine. If you also are searching for a reasonably priced programmable EFI system then I strongly suggest you visit the MegaSquirt website.
This particular specimen is a MegaSquirt II V3.0 running version 2.88 compiled code.
MegaSquirt II Features a Motorola 16 bit 24 MHz MC9S12C64 processor, an on-board stepper motor driver, and an ignition module controller.
Links to useful EFI information and conversions
Electronic Fuel Injector Flow Data Table
Turbocharged 1973 Plymouth 'Cuda 340 4 speed
"A True Low-Budget Multipoint EFI System"