What Is Your Idle Speed (and camshaft specs)?

As for not being able to make a tach work with a MSD ignition? Just plug the tach into the tachsignal connector on the box its not that hard most who cant make it work just ignore the destructionsmanual and keep their tach connected to the coil and then blame the box.

That is precisely what I did. I know not to connect the tach signal wires to any MSD coil, they specifically state that in the instructions that I read over and over. The tach signal wire is plugged into the box and I'm still not getting a reading. Yes, I have a pos wire and ground hooked up to the tach as well.