Its a great tool for the self programmers cause you can make 8 variations at once, and then use the one that works best without having to pull the chip and reburn everytime.
The one I have is a push-button instead of a rotating wheel, got it from John at Caspers.
Installed pic; http://hometown.aol.com/onebadwskier/images/gn-console-pod-edited.jpg
Hi
i am sorry but i put my reply in the wrong spot as i was saying
i bought a thumbwheel chip from casper about 4 years ago
it works great on my 86 g.n.
i leave it on the#4 with 93 octane &17 lbs of boost &it really moves.
thanks poochie.