clone - help

my brand new tillotson 212cc i just finished building (billet rod, 22mm mikuni, header, air filter, <1hr run time) runs perfectly fine, but when i rev it up it puffs blue smoke. Should I be worried, or is this normal for not broken in engines? I can get a video if need be on what it is doing

Ive got an old Bonanza BC1300 that Im cleaning up and getting roadworthy. The original H35 Tecumseh is in need of a complete teardown, so Im thinking of buying a 6.5hp Clone to get me up & running. Dimensionally it will fit, but Im wondering if any other Bonanza owners have done this too and if...