D-Jet Conversion not going as planned., Car starts but will not run. Options

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I am converting back to D-Jet and my car will start but dies right after. It will not rev up applying throttle. I have a 1975 914 2.0. It was running great with Weber 40s prior.

The D-Jet system is from a 1974 2.0. All the parts came in visibly good condition. TPS calibrates good, AAV tested good, Thermo sensor good, air intake temp sensor good, and a new cylinder head temp sensor. The only test that I think is failing is the vacuum test on the MPS. It leaks. Video of testing the MPS.. The MPS has also been rebuilt at some point. The original part # has been removed. There's a good chance it is not calibrated for my car. I have all new vacuum hose and fuel pressure is between 28 and 30.

I don't have any tools to calibrate the MPS. Should I try turning the inner screw on the MPS to see if it helps? Or should I send it to someone to have it rebuild again and recalibrated? If the later do you have any recommendations on who to send it to?

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No change after turning it down to 24. The engine starts while cranking but dies a second later. I tried starting fluid again, but it just flooded, and it wouldn’t crank over for a while. If I give it full throttle after cranking, it runs for a couple of seconds longer, but that’s it.

Next steps: I plan to pull the ECU and take measurements at the pins. I also want to pull the injectors from the intake and place them in jars to observe the fuel flow and compare the amount from each one. I previously tested them on the bench and verified they had good flow with pressurized carb cleaner.

The MPS has a small leak, but it's not extreme. I think it should still be good enough for the car to run. Maybe not great but should run. Thoughts?