Today I ran a top engine/fuel injector cleaner through the brake booster vacuum line. Wow. Lots of smoke when I revved 'er up to blow everything out at the end. Definitely needed to be done.
The car feels so much better. I hadn't been suspecting or noticing any sort of problem with the fuel system, I just wanted to clean it up for tune-up purposes, but wow. Well worth it. Before I did all this, when idling, the car would occasionally lope ever so slightly between about 500-900rpm. This has completely cleared up, throttle response seems to have improved a bit, and overall it's just swell.
I quite recommend doing this to your own car if you haven't done so recently. It'll be much happier.
