MSD box
This is very similar to a Digital 6 ignition and the Digital 6AL. It has a 2 step rev limit, that the others don't. If you don't need the 2 step then the Dig 6AL is a cheaper alternative.
MSD 8877 Is the harness that keeps you from cutting on the factory wires.
Check out page 13 on msd PDF
I don't have any experience with the 6AL-2, but I have a Dig 6AL, Dig 6, and a 7AL-3. The Dig 6AL also has a removable connector on the side so that's the only major difference.
Last edited by fex77k; Apr 13, 2012 at 07:47 AM.
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