csx4788 - msd - tach not working

[shelby racer]

Originally Posted by kris-kincaid

John,

You need to make up a new wire going from the male spade tach output on the MSD box directly to the tachometer. The green wire should be dead and not connected to the coil or the tach or the MSD box.

This is totally optional, but I usually hook up the black wire on the MSD box that normally is connected to the coil to the green wire running from the tach to the coil. This eliminates running extra wires through the firewall.

This should work, if not we'll try something else.

Thanks again Kris,
A nor cal saac member offered to sell me his tach adaptor, but he also mentioned that wiring his tach to the coil made his tach work, so I was hoping that piggy backing the green wire to the coil (negative lead / black msd wire I think you said) should also do the trick. Am I correct? I would be very happy if I were. Then I can get back to replumbing the fuel system. I still think I am gonna run both - 6 lines from the fuel cell through a fuel block to the fuel pumps in the trunk and then just run a -8 line up to the engine compartment with a regulator and fuel filter that I already have up there. Let me know what you think on any of this.
John(;-)