I've seen it used on one car and it was an improvement over the stock setup. Dyno testing on the car produced 140HP to the rear tires on a stock port 86 N/A engine. That is roughly a 30 HP improvement over a totally stock engine. Cost wise its the same as a new weber carb and upper intake adapter plus you can use the factory intake, fuel pump, fuel lines and injectors. You can get rid of the restrictive AFM and you have control to make changes if you need to.

Check out their site www.sdsefi.com

Let me know if you have anything good or bad to say about these units.

 

I just noticed the thread about the best bang for your buck. I'll keep an eye out there for replies.