Where do you take the vacuum from?
I'm going to fit it into one of these.

in the driver side vent!
yeah i dunno how well it will be in that spot, but there is a line that goes from the front of the intake manifold to the top of the injector pump, just t into that
interesting place to put your gauge...
I just put in a tee in the line going to the LDA and went straight from there into the cabin. I think I worked the vac line through a grommet hole in the firewall... Worked fine.