After doing all this, I took the Speedster for a first drive today - Andrig fan, Scat shroud, CSP breather, Awesome Powdercoat cylinder tins.
I had hoped for a long drive but it turned out to be very short. When I ventured out of the garage it was running very rough. Back in the garage, I discovered the throttle linkage was disconnected on the 1-2 side. I had disconnected it when installing a fresh air hose.
With the linkage connected it idles about 3000 rpm. I do appreciate the ease of disconnecting the Vintage Speed linkage from the carbs.
I am getting continuous popping. I welcome comments about why that might be.
I am starting to think investment in the Andrig fan was a mistake. I don't think I like the whistling sound it makes. I think I will order a new welded and balanced fan. The last one I bought was from Berg. Again, I welcome suggestions as to who to buy the fan from.