It looks like a really cool stand alone F.I. system. I like the idea of a cheap DYI system. To make it work for the 4.9, I think all you need to do is pick up the tach signal at the HEI output. That location is marked on the distributor cap. I signed up to be notified when the next batch is ready. Heck, for $125, it a small risk.
I don't think it can be used on the N* motor unless you can pick up a tach signal from the DIS brick.
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Roy :D
Just another stock Blue 87 GT
Suncoast Fieros
JUST ADDED: YELLOW 1988 GT w/ T-Tops, 5-Speed, and Performance Sound.