First bike

I just purchased my very first bike. It is a 1979 CB750F that had an engine rebuild a few years ago and has sat in storage since. The bike itself is cosmetically very clean and the engine does look like its been through a cleaning cycle. Apparently the previous owner was a racer and had intended to do some nostalgia races. for whatever reason he never finished up the bike and walked away from it. The guy selling the bike is not the owner and is trying to recoupe the storage fees (he does have the ownership). Anyway, I got the bike for a song so I won't be suprised if I have to put a little money into it, but I have a couple of questions.

What is the correct shift pattern for this bike?
Where can I get reliable info on setting up the carb (other than a manual)?
If the bike was in neutral, why would it be very, very difficult to move forward?

Thanks!