MPS, Rebuilding the MPS Options

[Ron914]

Hello to all who have helped me with this project . @emerygt350 ,@TJB/914, @Superhawk996 , @ChrisFoley , @rjames , @MDTerp
I am in the middle of rebuilding my MPS and have a couple of comments and questions .
First when I opened up the unit I found the most difficult job was removing the rivets holding the two halves together.
When I removed the retainer plate to take out the old diaphragm it was in two pieces .

I needed to take two measurements since I was replacing the stop screw , I needed to measure the the stop screw protrusion into the housing . The instruction sheet sent to me by a member had the measurements he must have made when rebuilding his MPS . His stop screw protrusion was 1.97mm and mine only measured 1.72mm.
His inner/outer screw assembly depth in the old diaphragm measured 6.51mm .
Here's one of my questions ?
when I measured mine I got two measurements depth to inner/outer screw assembly was 4.03
and depth to the washer outside the inner/outer screw assembly was 5.46mm.
Again there is a difference and since mine was never accessed before (epoxy over screw was not disturbed) is the difference in measurements ok and which measurement should I use I will try to attach a photo or two to help with my question.
this one .

I have not touched either of these measurements yet and awaiting any help/comments.
I think it's this one to the washer on diaphragm .

[Ron914]

As far as putting a 123 in my California car I was told in order to pass the California smog test the car had to have all the original factory equipment that it was sold with . The biggest issue is I do not have a catalyst on my car but because my car was not sold in California I should be exempt , we will find out when I take it in for the test . I had a 73 VW bug that we rebuilt to a 1835 and when I went to get my smog test I was failed (even though the car was well below the carb standards ) because I did not have the original equipment it was sold with ,like the vacuum advance distributor ,oil bath air cleaner , something else I don't remember ,oh it was the carburetor .I had to put the old solex ,air cleaner and distributor on the car and go to a BAR station where after testing the car was now putting out more than the standard allowed but because it had all the original. equipment on it they gave me a waiver . I remember the guy doing the test was really pissed off because as he said he did not have the authority to open and inspect the motor and he knew it had a cam in it still but had to give me the waiver . I guess I can do some more investigation on the 123 but I just don't want to do anything that might cause me to fail and would hate to have to remove e it every two years for the test . I don't even want to install the Bursch I got for my car because I have the original muffler with the Cat delete pipe and plater on my air cleaner still .