I got the March issue of Car Craft this week. Its got an article about a couple guys selling a DYI Radio Shack kinda kit for a MPFI computer called the Megasquirt( /forums/images/graemlins/grin.gif). Basically you solder it together and use it to control the fuel on a EFI setup. Ignition is your choice, not controlled by the umpooter. In the article they put together a TPI setup for $1500. They used a $200 base and ram. $260 new SLP runners, $421 for new 38-lb/hr injectors and $20 here and there for sensors and stuff. It looks like a cool way to control and tune a EFI setup for cheaper than some stand alone computers or a factory setup and burning chips. Go buy a Car Craft for the brief overview they give or go to the links given in the article.http://www.bgsoflex.com/megasquirt.html is the megasquirt page or http://www.members.shaw.ca/megasquirt/manual/mtabcon.htm to read through the instruction manual.