well Roger, I guess that a comparable point of time would be mid ninties-----I 'd had a 92 vet with lt1 and it had run on any gas i put in in, good clean pweformance, and milage that averaged 21.6-21.7 all the time i had it---with that, as i planned rRobin's 33, I got an engine/trans from a guy that dealt with the powertrains removed from Detroits test cars----I got a 96 lt1, 4l60 trans, from him----128 wires on the computer!!!!!!got a service manual, started sorting things out------------

If I had a bare long block---I'd get an intake off a factory efi and an pcm and either a factory harness or maybe one from FAST------
If the engine package is pretty well stock, only a little tuning would be required and an system such as a Diablo chip or hand held tuner would let you put in gear ratios, tire sizes, etc and adjust timing maps per selected/desired fuel ratios