In reply to Dusterbd13:
What are you doing for the EFI? It recently occurred to me that all it would take for a late cable-throttle GenIII's engine controller to be happy, besides the temp and map sensors, would be a common 60-2 wheel (what GM calls a "58X") and a distributor modified to look like a cam sensor, probably could be put together with bits liberated from a Ford 3.0 OHV cam position sensor as it is also a 180 degree on/180 degree off type "wheel".
Then boom, you natively have sequential injection, coil near plug ignition, and you should be able to do the electronics/wiring portion for cheaper than any remotely comparable standalone. Controllers are thoroughly hacked.