LS1 Fast ez efi with Fast xim wiring questions

[LS3torque]

I bought a Fast EZ EFI with the XIM ignition kit from Summit racing to run my LS motor in my 68 Chevelle. I'm in the process of getting the wiring all connected and the fuel controller and ignition controllers talk to each other with the "CAN" wires but the XIM harness has "CAN" wires but the fuel controller harness has a tach adaptor and only a yellow "tach in" but no "CAN" wires. Hopefully this is something someone here has run into before and can push me in the correct direction, thanks, Tom

[LS3torque]

Forget it, only the boxes that start with X have the "CAN" network capability...both the EZ EFI and XIM have to run in stand-alone mode with a tach wire being the only connection between the two.