He e-mailed me this in part of a general reply.......
"Engine
Oil...we use 30 weight but just about anything is OK...the cam manufacture should say what they want and I don't see much problem with 10/30.
EOS 1/3 in filter and 2/3 with
oil....then prime engine and you should also try to turn the crank over a bit by hand during the prime to get things every where.
I'd change it after the breakin and then again perhaps after 10-15 hours of engine run time...cut the filter open after the breakin to ensure everything looks clean. "
FYI EOS is GM's engine
oil supplement.
Good stuff for the breakin of the cam.
Now what flavour oil is up to you.
Tim