I remember that; they had Hilborn type injection or something like it, maybe Kinsler? And I did see the motor in Bill's car 103 when I visited him, although he had by then put an EFI system on it with coil packs and all that... I did not hear it run, but it must have been earsplitting when running...
I still don't know how you synch the butterflies from one side to the other...