I've not finished the chevy thread,looks interesting though.
The injected plymouth I don't recognize anything other than the regulator,it is throttle body injected?

I've got an entire spare engine assembly to work with.
Generically I was thinking drilling the intake for injectors,adding a few sensors and running an LS6 computer and appropriately sized throttle body.
Of course batchfire or sequential etc.. Would be worked out depending on details,i've just began kicking around the idea.
When I get around to dissassembling the spare engine i've got then i'll know more of course.
I'm pretty ignorant of anything made before the 90's.