745, notice for that cam its 1500rpm and above easily rev up and down bet 1500-3000, similar. i find above 2000 at this early stage(1ststage), unless your cam mfg recommends; 2000 is normal , both enough oil there, and not enough speed/rpm to bother anything, & for your 1st start your doing some work on internals, not as much as when you put a load on it, but its a good 1st workout, then i change oil/filter and go to the next step, 100miles low/mid speeds lots of load. dont forget decel revs, like the man has quoted, he finds a good hill and up with a lot of load, down -off throttle decel, or reverse load.
when a motor isnt in gear 3000rpm is A lot, above and you can ask for trouble.