As the title states, who has done this? Is it easy? I have a F.A.S.T system but never messed with computers really. Input would be appreciated as to where to run what and where to mount it. Thanks.
I am running the fast with ls1 coils and have a GM flex fuel sensor integrated into the fast. I had a local shop install the fast so that all my stock gauges still work. These guys make a harness to integrate the stock computer and the fast, he is also really good with the flex fuel configuration and the fast Horsepower Connection.com as for Brian.
you can purchase the harness and do it your self or if you have a local shop they can do it for you.