I've looked into this in the past, and have seen the videos.
Edit: he used a vortec type distributor in back, instead of the front mounted cam sensor, because he had the parts on hand. I saw the same videos. Not terribly expensive, but it is some work.
Edit There is a different route for sequential fire & front mount cam sensor:
basically, the top two items in this table:
https://www.eficonnection.com/home/c...efi-24x-lt1lt4
you could do it fairly cheaply; junk yard/craiglist 411 PCM & ignition coils, '96-'97 front cover (for crank sensor), Efi Connect components, and some time to re-pin the harness. the re-pinning doesn't look to bad, actually. the one catch is finding and agreeing to a standardized program.
guy with the videos used this instead of the front cover mounted parts:
[
edit:deleted. I listed wrong part]. He used the vortec style distributor with plug wire terminals.
https://www.youtube.com/playlist?lis..._BiVMa4pEUpWoD
oh, 411 doesn't need to come from the van. lots of vehicles used it... including LS1 4th gens.
Edit: vortec/van setup is batch fire. the '93 was batch fire. '94+ lt1 is sequential. 411 swap
can be sequential if using LS type of setup and not vortec SBC stuff.
edityou also, as shown from EFI connect, don't need to use the distributor in back (i.e. modify lt1 manifold) but the opti location for a cam sensor instead.
edit edited incorrect details above. more investigation is warranted if there is interest. I wouldn't sign up to modify the manifold and mount a distributor in back (what a PITA that would be) but instead prefer the front mount cam sensor with coil-on-plug ignition. Perhaps you can use an LS1 type tune but would have to adjust for firing order and make sure correct for stock LT1 MAF etc. *maybe* you could do a sync only type of *distributor* in back and only have to mount the *distributor* ala LT1Intakes small cap HEI conversion. a sync distributor is not really a distributor as it doesn't distribute the spark to the cylinders but instead is just a position sensor.
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