Figured I'd do my fuel pressure test before ripping into the vacuum lines and I see no issues with fuel. Initial key-on puts the rail to 55 psi. Running pressure is anywhere from 45 to 60 (depending on throttle) and I'm currently sitting around doing the leakdown test and I've only lost 2psi in 10 minutes. So, I'm thinking the fuel pump/filter is not the issue.

I'm looking at one of those fancy-pants vacuum blocks on ebay. I was thinking I'll just run a length of 5/16" vacuum hose over to the inner fender, and then just branch off the few little 1/4" lines I need right there. Would be a much cleaner installation, and less hose to worry about.