D-Jet is EFI but it's open-loop so while better than a carb, it's not smart enough to know what you did leaned it out, and compensate accordingly.

I can't speak to the actual angle the D-Jet trigger points should be, but I can measure a set I have in my basement on a distributor (I think from a 4.5, could be a 3.5, but they'd be the same angle either way). I think 150 sounds familiar, though.