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The VAFM was borderline obsolete when it was introduced. It's a klunky solution to metering air into an engine. I don't know of any modern EFI system that still uses one.
The fun part is that I found my old MCU development tools and I still have a couple of prototyping units laying around looking for something to do, so the converter part is covered. I just need to write a program for it and make a wiring harness.
I also dug up a spare VAFM I had and hooked it to my shop vac. Surprise! The shop vac can pull it to near 80% open which means I can calibrate the MAF to the VAFM using the shop vac instead of trying to do it on a vehicle.
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