FiTech EFI system

1) The Fitech has the leads and connector to go into the new MSD dizzy – what do I do with the original dizzy wires that came from the ECU (orange box)?

Unplug and "safe" them off or unwrap the harness and trace them back and pull them out of the harness. If it's a five wire, you will have "the fifth" wire going to one terminal on the 4 pin ballast.

You will have two wires for the distributor pickup

One will go direct from the ECU to the coil NEG

The remaining will branch into the "blue" "ignition run" same point as your choke