not on a mod motor but on my 93 i used it and its very nice....
if your not computer rAtarded you should be able to figure it out pretty easy, or if you got someone who has messed with one before you should be good to go....
I have the FAST management on my cobra, i have played with it a bit when i first installed it.. I left it alone and let Caleb at Fastlane Motorsports dial it in..