Anybody else running one of these? There was a lot of buzz around them when they released, but they were only available in 500 and 650 cfm. I found the 800 cfm manual choke version in stock without ever hearing about it's release last week, so I decided to give it a try. I need to put more miles on it to really know but I bolted it on, set idle speed and mixture, and took off. It does seem to me like it is slightly smoother at highway speeds than the holley was, whether that is due to the annular boosters or my imagination I'm not sure. So far it seems snappy, and I haven't had any bogs or stumbles really to contend with. I've made a couple wot pulls to around 4500 with it and it seems to pull nicely throughout the rpm range. Just thought I would offer my first impressions of it as in my eyes the annular discharge booster's advantage is right in the sweet spot of 455 cruising, and the 800 cfm should make a nice q jet replacement in a stock or mild street application.