What KE-Jetronic gen does the M104.981 have

[Swifter53]

There's a 300SL in a yard by me and I was thinking, that air meter plate looks more flow friendly than the stock one I have on Benzer 5's M103. It's the M104.981 so not the LH or HFM version, I'm thinking if I can get the fuel distributor + air metering plate as a whole unit for cheap might as well swap it on. I already swapped a M104.980's air box onto my M103 sooooo why not? Just need to know if it'll swap on or not and how interchangeable and compatible it is with everything on the M103.