Hey, buddy. Hope all is well.
Pic 1 is the BVSV (pic 1 below) and I can't tell the location for sure in the second pic. I do see a vacuum port on it, but I believe it is a temperature vacuum valve. Take a look at pic 2.
Note that I'm only seeing two vacuum hoses to the BVSV. There should be a cap on the top of it.
As far as the year is concerned, since you basically have turned 1993 into 1987, that is what year I would go with, the 1987.
Let me know if this helps.
Joe
See pics below.
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Saturday, April 23rd, 2022 AT 10:13 PM