Yeah the bike was running before I took it all apart. The carbs weren't doing the bike any favors. In my opinion, and I confirmed this with Hondaman when I met him on my trip, that the later model carbs K, F, and A are a hinderance to this bikes potential because they're too small and the pilots and passages were really restrictive and inaccessible because of EPA standards imposed on Honda at the time. The roundtops really are the way to fly. The idle is much better and the throttle range pulls well from idle to WOT provided you understand when to shift from L into D, but I never roll around in just D. I'm still shifting even if it is only twice. You can wind the bike up to 50mph and then shift which is great for getting on the highway and having to merge with tractor trailer trucks and the like.
As for the camshaft, the improvements are very noticeable. The bike's pickup has increased dramatically. Most "A" guys considering an upgrade seem to be converned about the loss of the idle speed pickup solenoid when the bike is shifted into gear and the accelerator pump, but I didn't find it to be anything to worry about when you consider how much better the bike is going to run and drive with the early carbs and camshaft.
The only thing to really consider is that the idle RPM screw for all 4 carbs when set in Neutral, needs to be set a little bit higher, say 1200 rpm instead of 1000 or whatever your particular bike can handle. I went with 115 main jets, everything else is in the stock positions/sizes.
I lowered the bike 1.5" all around and dig the lower stance and feel. I road really windy roads throughout my trip, up and down the Rocky Mountains and other places without feeling like ground clearance was some sort of problem.
