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Circuit Cellar issue 145 (August 2002, page 36-43) may be an answer to your your question. This article titled "Digital Ignition System: Building Without Distributor" explains how to build an microcontroller-controlled (Atmel's AVR AT90S2313) digital ignition system for a car. It includes all source codes (can be downloaded from CC's website) and schematics..
What a wonderful list of information about ignition systems...I really want to say the T-word to you, Ghettoman
...(I'm hope that I am not breaking any elektroda's rules [about thanking] here ) ..
I'm not really in to the ignition system design. I just came across this article by chance. I have the hard-copy version of this article. I don't have the direct link. But I believe that several helpful people here in Elektroda should be able to direct you to the pdf-file of this aritcle. Meanwhile, I will check my library (in my hard drive) whether or not I have this article in the pdf format. I will upload it if I've found it...
8O I don't understand. :? You can download the file by clicking the 'Download' (under the paper clip icon) inside the table in my last post. People have been downloading it 17 times, already.