KR> Run In Oil?

[Willie van der Walt]

  I just installed my KR2 Limbach engine after fitting Chevy 250 Small Block 
pistons @ 102mm dia. I am ready to start but would like to get some advice 
regarding running in oil. On the Lycomigs and Continentals we use straight 
for a wile. What do I do with this motor that normally runs on 20W50