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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I have a smoke box and pushed smoke through it today. Found that the intake to 3 and 4 were leaking between the head and air intake bad. I had a new gasket and fix it. I need to do a better job making the top of throttle body air tight. There was too much smoke coming out of it for me to tell if there were leaks around it.

I haven't set the timing yet. Thanks Brant for reminding me that I need to disconnect the vacuum.

I have opened the MPS a couple times but I haven't touched the adjustment screws yet. I do want to put a new paper gasket in it to fix the leak but I don't know how to disassemble it to remove that diaphragm and if it can be done without moving the adjustment screws.