TBI help

[66gmcguy]

I am trying to swap a L05 engine and all TBI stuff into a 1978 K30. I did a similar swap a few years ago but have forgotten most of what I learned. I am using an NV4500 transmission. I was planning on buying a new computer and buying an EPROM for manual transmissions, but it seems like you can't buy new EPROMs from GM anymore.

I have a computer and EPROM from a 1987 suburban with a TH400. Would this work in a manual transmission truck since there is no lockup for the converter on TH400s, or is the fuel table completely different?

Or if anyone has a source for new GM EPROMs and could direct me to them that would be awesome. I am trying to avoid the aftermarket route.