Found this discussion because I'm having the problems Jimzee78280 had in post #12... especially "Crank, crank, crank. Getting really good spark, but no fuel is getting into cylinders."
Just bought a 280Z that wasn't running... it has a Mallory Unilite distributor the previous owner installed... he said he had it running... 2 years ago, and lost time to tinker with the car so he sold it.
Called MSD (owns Mallory now) and the technician was surprised to hear the Unilite is on an EFI car. He said it needs a tachometer adapter so the ECU knows when to trigger fuel injection. Also, searched "280Z Mallory Unilite" and the first hit is http://www.thezstore.com/page/TZS/PROD/12-4042 where it says "Mallory Unilite distributors will not work with the stock Nissan fuel injection system ECU."
Those two things confirm my suspicion that the EFI/ECU is fine (passed all tests in the EFI Bible), but the ECU doesn't know when to fire the injectors...
So, do I:
1) Find a way to make the Unilite work? How?
2) Buy a stock distributor at AutoZone... but I wonder what else he's altered/removed from the car that may not allow the stock one to work.