Aftermarket Fuel/Ignition ECU for EFI Type 4??

Hey, I was just wondering if anyone's fitted an aftermarket ECU (Such as a 'Haltech' or 'MSD Fuel-Injection') to the stock type 4/Late Bus injection setup?
I'm not using the standard injectors and probably using either 'MSD Ignition' or 'Compufire' ignition so that I can mate it with the ECU for better and more acurate tuning over stock ignition.
Anyone fitted a similar setup?
Thanks,
-Staggers.

Check out "Ratty 63" post on this subject as him and his Brother Dave have been playing with these for several years now .
They are using the 2lt Holden Camira set up including the dizzy that has just got to have its body turned down where it slides into the block.
And it is all fully tuneable with a laptop on the road /dyno etc

Ok, thanks man.
-Staggers.