I have an MSD 8360 with Blaster 2 coil that I'm going to try the K&N ECI system with. I bought the MSD 8910 adapter that K&N says is required. The K&N wiring diagram just shows a white tach in wire in their harness with a note that says "to coil negative on standard ignition (requires MSD 8910). The only MSD diagram I can find for the 8910 shows it wired to a MSD ignition control box and not the coil. The MSD 8910 has no instructions with it at all. I tried the K&N Tech Help and got no where. I just received an email saying it'll be a long time before they can get back to me. Hopefully you can help.