As far as I know, I am the only one running a MAF EFI system in a DeLorean. The settings will remain the same for the rest of the tune except you'll run a MAF curve for fueling - all you really need is a good flow curve for the MAF you choose to run and you don't have to screw around trying to figure out a fuel table. From there, you can alter the curve as needed or you can alter the fuel table if you need to tweak some things (you still get a fuel table but it's all 0’s when you use a MAF curve, you can + or – as needed). The rest of the settings are the same regardless of fueling.
For me, going MAF based just sort of happened. I wanted to keep the B280F pretty much as ‘drop in’ as possible meaning I would be using the Bosch MAF it came with. So I traced the wiring and the issues began once I found this particular MAF had a ‘burn off’ feature. I’ll skip the whole explanation on what that is and just admit that I couldn’t figure out a simple way to implement it. The next issue was I could only find a very limited flow curve for that particular sensor and had to pretty much calculate, as best as I could, what the rest of the curve might be. It ran, but it ran poorly. I started looking at sensors and what others in the Megasquirt community, as a whole, were running and ended up with a 6-wire Ford MAF along with a pretty detailed curve. It ran great. I went with the “6 wire” sensor because it also has an IAT built in, like the original Bosch did – one less sensor to worry about installing somewhere.
Because I am still working during these lovely times, it may take me a day or two to send but I will PM you my tune.
Below is a photo of my setup. It is certainly no beautiful LS yet, it is a little dirty and I still really need to do something about the air filter location but at least it is done and reliably going down the road.