At 1,000 rpm and no load (in neutral/clutch disengaged), I would expect ~10 gm/sec flow rate for warm/hot coolant temperature. So you can adjust your maf to read ~10 gm/sec at 1,000 rpm in ALDL mode and monitor the BLM behavior once in closed loop. Use the BLM as your rich/lean indicator.

If the BLM is too rich or too lean (and if you trust everything else to be correct, a big if), you can adjust the MAF or fuel pressure as a crude method to compensate for the mixture error, or you can tune it properly by re-programming the eprom accordingly.

This is great information. Thank you

No it doesn't.... It has a back up mode that runs off set tables

I am a man with a failed MAF that is disconnected and waiting for me to bite the bullet and install the EBL. Car runs great, plug MAF in, it stumbles, coughs, and dies erratically. Un plug the MAF anf go have a happy drive. Gets lean up top though so no racing, but cruises just fine.

Thank you. for the advice.
So you are installing the Dynamic EFI EBL. Something I am really considering.

That's...interesting. It doesn't have a MAP sensor like the LT1/LT4 do, so...how is it calculating load? "Tables" sure, but the only input it'll have at that point is throttle position and RPM. So...I mean, I'm curious, I suppose, what it's doing to keep running without any idea how much air is getting into the air pump.