Thanks to 'porsche74', I've cured my Webers that were running rough at low steady speeds.
RE:
http://www.pelicanparts.com/cgi-bin/vb/showthread.php?threadid=67154&highlight=rough+running
Interestingly, I found a significant amount of small paint chips on the base of my air filters (see photo below). I suspect these red paint chips are from taking the watershields on and off and the mount holes rubbing on the threads of the hold-down studs. Is this what clogged my idle passages? I dunno, but maybe.
The bottom line is this method of using compressed air to blow out the passages is very easy to do. My car runs even 'more perfectly' than before! What is frustrating is that I've got a couple of Weber books and information from various Weber websites, and NOBODY mentions this simple cleaning method?! Thank God for the Pelican BBS.
Now it's on to improving my air & fuel filtration.
